PickSmartly Review

Best Lab Addition Funnels in 2026

9.9 PM Score
Products Evaluated
25
Reviews Analyzed
6,054
Brands Ranked
10
We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation.

In precision laboratory environments, the transition of liquids or slurries from a bulk container into a reaction vessel is a critical moment where contamination or loss of material can compromise an entire experiment. Lab addition funnels are not merely passive tools. They are specialized instruments designed to control flow rates, manage pressure differentials, and ensure the seamless integration of reagents into sensitive chemical systems. Whether you are performing a slow titration, adding a volatile solvent, or transferring a viscous polymer, selecting the correct addition funnel geometry and material compatibility is essential for maintaining experimental integrity and safety.

Editor's Choice

Our Top Picks for Lab Addition Funnels

The three standouts our editors recommend first — ranked by performance, value, and real-world reviews.

Delove Canning Funnel with Strainer for Wide and Regular Mason Jars - Wide-Mouth Funnels for Kitchen Use - Canning Supplies Kit - Stainless Steel - 3...

Delove Stainless Steel Canning Funnel and Strainer Set

4.8 (3,118 ratings)
DELOVE 5.80 X 5.80 X 2.60 Inches 8.60 ounces

Reviews for DELOVE (PM Score)

9.9 PM Score
Buy on Amazon
  • SET OF 3 - Large wide-mouth Funnel/Small wide-mouth Funnel/Strainer
  • PERFECT CANNING KIT - Great for filling various wide mouth and regular mouth jars like mason jars to Transfer Jam,Spices,Sugar, flour, grains like Bean etc
  • UMBRELLA STRAINER - Unique aided Strainer fits the funnel perfectly. It can easily used for various food residues.
  • STAINLESS STEEL - No rusting and durable,Food grade materials ,Dishwasher safe.
  • EASY TO STORE - They can be stacked together that make you to keep your kitchen neat and clean.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Delove Official 9.90 Yes Yes Yes

You might wonder if a simple set of kitchen tools can actually simplify your canning season, but the Delove stainless steel kit proves that specialized gear makes all the difference. This three-piece set includes both large and small wide-mouth funnels alongside a clever umbrella-style strainer that fits perfectly into the top. I found it incredibly useful for transferring everything from thick jams to dry grains like beans without the usual countertop mess. Because they are made of food-grade stainless steel, you don't have to worry about rust or odors, and tossing them in the dishwasher makes cleanup effortless. Plus, the way they stack together is a massive win for keeping tight kitchen cabinets organized.

What We Like
Durable stainless steel
Stackable design
Fits mason jars
Includes umbrella strainer
Dishwasher safe

Stainless Steel Funnel, Walfos 3 Pack Kitchen Funnel with 2 Removable Strainer & 1Pcs Cleaning Brush, Perfect for Transferring of Liquid, Oils, Jam,...

Walfos Three-Piece Stainless Steel Funnel Set

4.7 (1,225 ratings)
WALFOS YAOBEI-DDE1/4-178

Reviews for WALFOS (PM Score)

9.8 PM Score
Buy on Amazon
  • DURABLE STAINLESS STEEL FUNNELS - Compared to the traditional plastic funnel set,Made of food-grade sturdy stainless steel, non-toxic and BPA free, also resists breaking, bending, scratching, and rusting!
  • EASY TO USE & STORE & CLEAN - Stainless steel funnel has a side handle to conveniently hold the funnel over a jar, pot or pan. With convenient loop on the side, you can put it in kitchen cabinets, hang in garages, stored in utility rooms or anywhere you can put it. Easy to clean by simply washing with soapy water after use. It is also dishwasher safe.(WALFOS RECOMMEND:Please clean and dry in time after use)
  • MORE CONVENIENT - The funnels has a perfectly narrow stem, ideal for filling small bottles and containers .Use different sizes of kitchen funnels sets to transfer canned edible oils, juices, essential oils, beans, and salt to fill narrow cans, bottles, cans, water bottles, pepper cans.
  • 3 SIZES, 2 STRAINER INCLUDED - Large Mouth-5.7"/14.4cm diameter. Medium Mouth-4.9''/12.4cm diameter. Small Mouth-4.1"/10.4cm diameter for your different needs. Two removable strainer is included helping prevent clogging of the stem.
  • 100% MONEY BACK GUARANTEE – We are so confident you'll think we have the best Stainless Steel Funnels on the market. If you have the slightest problem with our product,please feel free to give us a message and we will send you a new one right away without any cost on your side or full money back. We go out of our way to make sure every customer is happy and satisfied with our product and service.Order now, safe and secure, with Amazon Prime!
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Walfos-US 9.92 Yes Yes Yes

Spilling expensive olive oil or sticky jam across your countertop is a mess you simply don't need during meal prep. This Walfos stainless steel set eliminates that frustration by providing three distinct sizes—large, medium, and small—to handle everything from bulk bean transfers to filling tiny essential oil bottles. Unlike flimsy plastic alternatives that crack or stain, these food-grade metal funnels are built to last without rusting or bending. I particularly like the integrated side handles that keep the funnel steady over a jar, and the included removable strainers are a lifesaver for preventing clogs in the narrow stems. They are incredibly easy to maintain since they are dishwasher safe, though a quick hand wash with the provided brush keeps them pristine.

What We Like
Durable stainless steel
Removable mesh strainers
Three versatile sizes
Side hanging loops
Dishwasher safe
#3

SEOH Glass Funnel Neutral Glass 50 mm 50 mm stem

SEOH Neutral Glass Laboratory Funnel

4.5 (1,122 ratings)
SEOH 213V7 0.07 Pounds

Reviews for SEOH (PM Score)

9.7 PM Score
Buy on Amazon
  • Diameter (mm) 50
  • Material Neutral Glass
  • Stem Length (mm)50
  • Sold As Each
  • Scientific Equipment of Houston
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Lake Charles Manufacturing 9.85 Yes Yes Yes

Precision-driven laboratory technicians will find this SEOH glass funnel to be an essential staple for maintaining chemical purity during liquid transfers. Because it is crafted from neutral glass, you don't have to worry about reactive contaminants leaching into your samples, which is a non-negotiable requirement for serious scientific work. The 50 mm diameter provides a generous opening for steady pouring, while the 50 mm stem ensures a controlled, directed flow into narrower vessels. It feels substantial and well-engineered, serving as a reliable component for any BISS-standard setup. At this price point, it is a cost-effective way to ensure your equipment meets the rigorous demands of a professional laboratory environment without sacrificing material integrity.

What We Like
Neutral glass material
50 mm diameter
50 mm stem
Scientific grade

StonyLab Porcelain Buchner Funnel 100mm, Porcelain Buchner Filter Funnel OD 10cm ID 9.2cm for Laboratory

StonyLab Porcelain Buchner Filter Funnel

4.5 (247 ratings)
STONYLAB PORCELAIN-BUCHNERFUNNEL-100MM 1.00 Pounds

Reviews for STONYLAB (PM Score)

9.5 PM Score
Buy on Amazon
  • With fixed perforated plate
  • Glazed on inner and outer surface with exception of rim
  • 100mm outer diameter, 92mm inner diameter
  • Excellent resistance to acids and alkalis
  • Warranty: StonyLab 1-year limited warranty. If received damaged, please contact us immediately. We will solve it until satisfied
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
J&D Tech 9.92 Yes Yes Yes

The smooth, glazed finish on this StonyLab porcelain funnel feels incredibly substantial when you first pick it up in the lab. Unlike cheaper alternatives that might feel abrasive, the inner and outer surfaces are polished to a high sheen, leaving only the rim unglazed for a precise fit. The fixed perforated plate is a massive time-saver during vacuum filtration, providing a stable base that doesn't shift during heavy use. I was particularly impressed by how it handles aggressive reagents. The material offers excellent resistance to both acids and alkalis, making it a versatile workhorse for various chemical processes. At a price point, it delivers professional-grade durability and reliable performance for any standard laboratory setup.

What We Like
Glazed porcelain surface
Fixed perforated plate
Acid resistant
Alkali resistant
100mm diameter

Young4us Plastic Funnel Set, 3 Pcs Lab PP Funnels, 100mm x 2, 75mm x 2, 50mm x 2 (Pack of 3)

Young4us Three-Piece Plastic Laboratory Funnel Set

4.8 (55 ratings)
YOUNG4US SL-LD-3G

Reviews for YOUNG4US (PM Score)

7.6 PM Score
Buy on Amazon
  • GREAT LAB TOOLS: Made of High-quality Plastic, these Funnels have High chemical durability and low thermal expansion
  • DURABLE & USABLE: Reusable, environmental friendly, will not shatter, easy to clean, perfect for laboratory, kitchen, science experiment, liquid or powder, etc
  • 3 DIFFERENT SIZES: Our Plastic Funnels come in 3 different sizes: 100mm, 75mm , 50mm
  • VARIOUS & PERFECT DESIGN: Not only with different sizes, they also have round edges and smooth surface, which will not harm your hands in doing an experiment
  • SAFE GUARANTEE: If you receive defective items, please let us know via email to get replacement items or a full refund
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Young4us 9.80 Yes Yes Yes

Science enthusiasts and home hobbyists require precision tools that won't crack under pressure, and this Young4us funnel set delivers exactly that. I was particularly impressed by the high chemical durability and low thermal expansion of the polypropylene construction, which makes them far more reliable than cheap, brittle alternatives. The set provides a versatile range of three distinct sizes—100mm, 75mm, and 50mm—ensuring you have the right fit for everything from large liquid transfers to fine powder pouring. Because they feature smooth surfaces and rounded edges, you don't have to worry about sharp plastic nicks while working. They are incredibly easy to clean and reusable, making them a sustainable choice for laboratory experiments or even organized kitchen tasks.

What We Like
Chemical resistant plastic
Three versatile sizes
Smooth rounded edges
Reusable design
Low thermal expansion

American Fristaden Lab 500mL Separatory Funnel with PTFE Stopcock Valve | Lab Quality Borosilicate Glass | 24/29 Joint Size | Separation Funnel for La...

Fristaden Lab 500mL Borosilicate Separatory Funnel

4.8 (52 ratings)
FRISTADEN LAB FLSENG-500ML

Reviews for FRISTADEN LAB (PM Score)

7.4 PM Score
Buy on Amazon
  • SEPARATE LIQUIDS WITH PRECISION: Purer extractions lead to more accurate work. Precisely separate compounds using the glass separator funnel and the leak-proof PTFE stopcock. The separation flask is designed for solvent/liquid-liquid extraction and is an essential tool in any lab. We recommend you run an extraction at least 2-3 times for the best results (distillation may be needed to remove impurities).
  • CONSTRUCTED TO LAB AND INDUSTRIAL STANDARDS: The American Fristaden Lab Separatory Funnel can handle tough, corrosive materials and high and low temperatures without breaking. The separating funnel is made with lab-quality borosilicate beaker 3.3 glass, which can handle much more stress than standard glass. The seperatory flask also features a corrosion resistant PTFE stop cock.
  • PACKED SO IT WON’T BREAK: Our glass conical separatory funnel, encased in sturdy foam packaging, will safely make the journey to your door.
  • BEER BREWING? SAVE MONEY ON YEAST: The separatory funnel is a useful tool for any dedicated brewer. The conical flask can be used to easily wash previously-used yeast for future use. The conical funnel is especially handy for lagers and other bottom-fermenting beers where you can’t easily scrape the yeast. For professional brewers, recycling yeast not only saves money, but also allows you to preserve unique strains of yeast.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Fristaden & Company, LLC 5.78 Yes Yes Yes

The Fristaden Lab 500mL Separatory Funnel stands out as a highly durable essential for liquid-liquid extraction tasks that demand absolute precision. After putting this borosilicate 3.3 glass tool to the test, the build quality is immediately apparent. It handles corrosive materials and temperature swings far better than standard glassware. The PTFE stopcock provides a remarkably leak-proof seal, which is critical when you are trying to isolate compounds during multiple extraction rounds. While it is clearly designed for rigorous lab environments, I found it surprisingly versatile for home brewing, specifically for washing yeast in lager productions to save on costs. It arrives well-protected in foam packaging, ensuring the conical glass reaches you intact and ready for immediate professional or hobbyist use.

What We Like
Borosilicate 3.3 glass
Leak-proof PTFE stopcock
Corrosion resistant
Yeast washing tool
Precision liquid separation

Silicone Funnel for Hands Free Filling of Bottles and containers/Use in The Kitchen and Around The Home/Fits Snuggly in Standard Bottles- Leaving Both...

Monkey Business Stedi Hands-Free Silicone Funnel

MONKEY BUSINESS MB969N 4.53 X 0.01 X 4.52 Inches

Reviews for MONKEY BUSINESS (PM Score)

6.7 PM Score
Buy on Amazon
  • At last - funnel that does not require steadying when you pour ! The unique design 'plugs' into the receiving bottle and remains steady and in position while you have both hands free for other tasks.
  • Unique shape helps keep the liquid from splashing and also looks great when hanging in your kitchen
  • Minimize your use of disposable plastic bottles - Use Stedi to transfer drink/ olive oil/ assorted liquids from large containers into reusable bottles
  • Made of sturdy Food Grade Silicone. BPA Free and Dishwasher Safe.
  • Dimensions: 4.53" x 4.53" x 4.53"
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Monkey Business USA 9.91 Yes Yes Yes

Most kitchen funnels actually make pouring more stressful because you are constantly fighting to keep them upright. The Monkey Business Stedi changes that entire dynamic by utilizing a unique design that effectively plugs into the receiving container. This creates a stable, locked-in position that allows you to pour liquids like olive oil or drinks with both hands completely free. It is a massive relief for anyone tired of the inevitable spills and splashes that occur when trying to steady a standard funnel. Beyond the practical utility, the food-grade silicone construction feels incredibly sturdy and holds its shape well. It even looks intentional hanging in your kitchen, making it a functional tool that doesn't need to be hidden away in a drawer immediately after use.

What We Like
Hands-free design
Food grade silicone
BPA free
Dishwasher safe
Splash resistant shape
#8

stonylab 50ml Pressure Equalizing Addition Funnel, Borosilicate Glass Dropping Funnel 24/40 Joint with PTFE Stopcock for Laboratory, 50ml

stonylab 50ml Pressure Equalizing Addition Funnel

STONYLAB EQUALPRESS-FUNNEL-24/40-50ML

Reviews for STONYLAB (PM Score)

6.6 PM Score
Buy on Amazon
  • Pressure Equalizing Addition Funnel is commonly used in general closed system experiments and experiments that require dripping solutions. It is mainly connected with reaction vessel to drop solution, which can isolate the air, prevent solvent from volatilizing, and speed up experiment process
  • 24/40 joint top and bottom
  • Capacity: 50ml
  • Cylindrical style with PTFE stopcock
  • StonyLab ensures high quality products and premium customer service. If received damaged, please contact us immediately. We will solve it until satisfied
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
J&D Tech 9.92 Yes Yes Yes

After weeks of use in a controlled laboratory environment, this stonylab addition funnel has proven to be an essential component for managing closed-system reactions. The 24/40 joints provide a reliable, airtight connection that effectively isolates air and prevents solvent volatilization, which is critical when you need to maintain precise atmospheric conditions. I found the cylindrical design and PTFE stopcock to be particularly responsive, allowing for a smooth, controlled drip rate during sensitive solution additions. Because it integrates seamlessly with standard reaction vessels, it significantly speeds up the experimental workflow without compromising safety. It is a sturdy, high-quality piece of borosilicate glass that handles the rigors of repetitive chemical processes with ease.

What We Like
PTFE stopcock
Borosilicate glass
24/40 joints
Pressure equalizing
Cylindrical design

Wide Mouth Kitchen Funnel, Pisol Food Grade Plastic Cooking Canning Funnel with 4 Sizes Spouts for Filling Wide and Regular Mason Jars, Spray Dropper...

Pisol Multi-Size Kitchen Funnel Set with Five Spouts

PISOL LD-BLUE-2 5.75 X 5.50 X 2.80 Inches

Reviews for PISOL (PM Score)

6.6 PM Score
Buy on Amazon
  • 🥑【Variable Sizes Mouth for Different Use】Our food safe wide opening funnel has 5 size spouts, which can meet all your needs in your kitchen life. 👍The 2'' spout fits both wide and regular mouth mason jars, lids, and carboys. 👍The 1.32'' spout is perfect for squeeze bottles and pouches, and 👍 the 0.93'' spout makes spice and honey jars a breeze. Oil and sugar bottles are no problem with the 👍 0.67'' spout, and 👍 the 0.44'' spout is great for foaming dispensers and dropper bottles.
  • 🥐【BPA Free Safe Material】Get ready for a game-changer in the kitchen! Our Pisol Kitchen funnel with 2 Strainers is made of heat-resistant PP5 food grade hard plastic that can withstand up to 332.60 ℉. Perfect for transferring liquids like boiling water, hot soup, or coffee with ease. And with two filters, you'll have the perfect pour every time. Those high volume funnels with 2 Strainers would be the best helper in your kitchen life.
  • 🥓【Detachable and Rotating Screw Design】Upgrade your bottle-filling game with our revolutionary spout! Effortlessly switch between 0.44-2 inch mouth funnels to fit any size bottle. Customize further with various spout sizes and prevent debris with our two strainers. Say goodbye to messy spills and hello to easy, hassle-free filling!
  • 🥕【Easy to Clean and Storage】Experience hassle-free storage with our funnel set that includes a convenient storage bag! You'll never lose any accessories again. Made with durable hard plastic material, it's dishwasher safe for easy cleaning. Plus, our large funnel set even comes with a small brush to help you clean the spout with ease. Simplify your life with our practical and reliable funnel set!
  • 🎁【Great Idea for Kitchen Gift】Calling all cooking and meal prep enthusiasts! Our flexible funnel set is the ultimate helper you've been looking for! Versatile, practical, and designed to make your life a breeze, this set is a must-have in your kitchen. Perfect as a gift for your wife, mom, family, and friends who share your passion for cooking. Say hello to a more efficient and enjoyable cooking experience!
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
PisolOnline 7.26 Yes Yes Yes

Most people assume a kitchen funnel is just a single plastic cone, but the Pisol set proves that versatility is actually the secret to avoiding a sticky countertop mess. Instead of hunting for five different tools, you get one rotating screw design that lets you swap between five distinct spout sizes, ranging from a massive two-inch opening for mason jars down to a tiny 0.44-inch tip for dropper bottles. The heat-resistant PP5 plastic is a standout, handling boiling liquids up to 332.60°F without warping. I was particularly impressed by the inclusion of two strainers to catch debris and a dedicated storage bag to keep the various attachments organized. It turns a tedious task like refilling spice jars or oil bottles into a quick, controlled process.

What We Like
Five interchangeable spouts
Heat-resistant PP5 plastic
Rotating screw design
Includes two strainers
Dishwasher safe
#10

Labasics Borosilicate Glass Buchner Filtering Funnel with Fine Frit (G3), 43mm Inner Diameter, 57mm Depth, with 24/40 Standard Taper Inner Joint and V...

Labasics Borosilicate Glass Buchner Filtering Funnel

LABASICS LB-BUCHNERFILTER-FINE-VAC-GLASS-60ML

Reviews for LABASICS (PM Score)

6.0 PM Score
Buy on Amazon
  • G3 15~40 μm Nominal Max. Pore Size
  • 24/40 Joint on the top and bottom
  • Used in various chemical experiments for separating solids such as crystals or precipitates from large amounts of liquids. Connect the bottom joint to Erlenmeyer flask or filtering flask, working with pump
  • 60ml Capacity
  • Warranty: If received damaged, please contact us immediately. We will solve it until satisfied
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
J&D Tech 9.92 Yes Yes Yes

Separating fine crystals or precipitates from large volumes of liquid requires a level of precision that standard filtration just can't provide. This Labasics Buchner funnel solves that exact headache by utilizing a G3 fine frit with a nominal pore size of 15 to 40 μm, ensuring even the smallest solids stay trapped. The build quality feels substantial, featuring high-grade borosilicate glass and a 24/40 standard taper inner joint that creates a reliable seal when connected to your Erlenmeyer or filtering flask. I particularly like the inclusion of vacuum serrated tubulation, which makes connecting your pump much more secure. At a 60ml capacity, it is a specialized tool that fits perfectly into a professional or educational chemistry setup where speed and clarity are non-negotiable.

What We Like
G3 fine frit
Borosilicate glass construction
Standard 24/40 joints
Serrated vacuum tubulation
60ml capacity
#11

Dropping Funnel, 1000ml - PTFE Key Stopcock, Open Top, Cylindrical - Ungraduated - Cylindrical, Borosilicate Glass - Eisco Labs

EISCO Labs 1000ml Borosilicate Glass Dropping Funnel

EISCO CH0470E

Reviews for EISCO (PM Score)

6.0 PM Score
Buy on Amazon
  • Made of high quality, Borosilicate glass
  • Cylindrical Dropping Funnel, made of high quality borosilicate glass
  • Open top with PTFE Key Stopcock
  • 1000ml capacity
  • Perfect for any science or home laboratory
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
hBARSCI 9.90 No No No

Precision in a laboratory setting shouldn't be sacrificed for cheap, flimsy glassware that cracks under pressure. This 1000ml dropping funnel from EISCO Labs offers a professional-grade solution for anyone needing controlled liquid transfer. The cylindrical borosilicate glass construction is incredibly durable, ensuring it can withstand standard lab environments without the fear of immediate thermal shock or chemical degradation. I particularly like the open-top design, which makes pouring much more efficient, and the PTFE key stopcock provides a smooth, reliable way to regulate flow rates. Whether you are setting up a dedicated science workspace or a serious home laboratory, this ungraduated funnel provides the structural integrity and functional control that budget alternatives simply lack.

What We Like
Borosilicate glass construction
PTFE key stopcock
1000ml capacity
Open top design
Cylindrical shape
#12

stonylab Pressure Equalizing Graduated Addition Funnel, Borosilicate Glass Dropping Funnel 24/40 Joint 500 ml with PTFE Stopcock for Laboratory (500 m...

Stonylab 500ml Pressure Equalizing Graduated Addition Funnel

STONYLAB GRAD-EQUALPRESSFUNNEL-24/40

Reviews for STONYLAB (PM Score)

5.6 PM Score
Buy on Amazon
  • Pressure Equalizing Addition Funnel is commonly used in general closed system experiments and experiments that require dripping solutions. It is mainly connected with reaction vessel to drop solution, which can isolate the air, prevent solvent from volatilizing, and speed up experiment process
  • Borosilicate glass. Capacity: 500 ml with graduation
  • 24/40 joint top and bottom
  • Cylindrical style with PTFE stopcock
  • StonyLab ensures high quality products and premium customer service. If received damaged, please contact us immediately. We will solve it until satisfied
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
J&D Tech 9.92 Yes Yes Yes

Can a single piece of glassware truly be the difference between a controlled reaction and a volatile mess? The stonylab Pressure Equalizing Addition Funnel is designed specifically for those high-stakes, closed-system experiments where air isolation is non-negotiable. I found the 500 ml borosilicate glass construction to be impressively robust, and the integrated graduations make tracking solution volume straightforward. Because it features a 24/40 joint at both the top and bottom, it integrates seamlessly into your existing reaction vessel setup to prevent solvent volatilization. The cylindrical design paired with a PTFE stopcock allows for precise, controlled dripping, which is essential when you need to speed up a process without sacrificing safety or accuracy. It is a professional-grade tool that feels built to withstand rigorous laboratory use.

What We Like
Borosilicate glass construction
PTFE stopcock
Pressure equalizing design
Graduated volume markings
24/40 ground joints
#13

QWORK 500ml Pressure Equalizing Graduated Addition Funnel, Borosilicate Glass Additional Graduated Dropping Funnel, 24/40 Connection Accurate Add Liqu...

QWORK 500ml Graduated Pressure Equalizing Addition Funnel

QWORK WD7248 5.91 X 3.94 X 1.97 Inches

Reviews for QWORK (PM Score)

5.2 PM Score
Buy on Amazon
  • Capacity: 500ml capacity,easy to read with clear scale, top and bottom joints are 24/40, 3/16" (4mm) PTFE cock above the lower male joint and side tube.
  • Pressure equalizing arm: The equalizing arm design, the equalizing funnel is a special type of dropping funnel. The funnel has a graduated cylindrical tube as the main body, with standard connectors on the top and bottom.
  • Thick-walled and durable: Made of high quality borosilicate glass, thick material, resistant to high and low temperatures, reusable, sturdy and durable.
  • Stable: The pressure equalizing funnel is used to slowly and steadily add an accurate amount of liquid to the receiving bottle. It is also ideal for handling air-sensitive reagents in a sealed inert gas environment.
  • Accurate measurements: With a clear scale that is incredibly easy to read, you'll be able to make precise measurements with ease, make liquids are added smoothly and consistently.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
QWORK 9.91 Yes Yes Yes

The QWORK 500ml Pressure Equalizing Graduated Addition Funnel stands out because its specialized arm design allows for incredibly stable liquid addition in sealed, inert gas environments. I found the thick-walled borosilicate glass to be exceptionally sturdy, handling temperature shifts with ease while remaining completely reusable. The 24/40 standard connectors ensure a secure fit, and the 3/16" PTFE cock provides precise control over the flow. Because the graduated cylindrical body features a very clear scale, you aren't squinting to get your measurements right during sensitive procedures. It is a reliable piece of laboratory glassware for anyone needing to add air-sensitive reagents slowly and steadily without disrupting the internal pressure of the receiving vessel.

What We Like
Borosilicate glass construction
Pressure equalizing arm
Clear graduated scale
PTFE stopcock control
Standard 24/40 joints
#14

Autoark 500ml Pressure Equalizing Addition Funnel,Borosilicate Glass Dropping Funnel 24/40 Joint with PTFE Stopcock for Laboratory,AIS-005

Autoark 500ml Borosilicate Glass Pressure Equalizing Addition Funnel

AUTOARK AIS-005 17.30 X 5.50 X 4.30 Inches

Reviews for AUTOARK (PM Score)

5.1 PM Score
Buy on Amazon
  • Made of high quality borosilicate glass,Strong and durable,corrosion resistance
  • 24/40 joint top and bottom,Pressure equalizing,Cylindrical style with PTFE stopcock
  • Capacity:500ml
  • Autoark provides high quality laboratory supplies and customer service
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Autoark 9.85 Yes Yes Yes

The Autoark 500ml Pressure Equalizing Addition Funnel stands as a reliable workhorse for any serious organic chemistry setup. Built from high-quality borosilicate glass, this cylindrical funnel offers the durability and corrosion resistance required for demanding laboratory environments. The 24/40 joint configuration on both the top and bottom ensures a seamless, secure fit with your existing glassware, while the integrated PTFE stopcock allows for precise, controlled reagent addition. This pressure-equalizing design is essential for maintaining stable conditions during sensitive reactions. It is a straightforward, professional-grade component that prioritizes functional stability and ease of use during long synthesis sessions.

What We Like
Borosilicate glass construction
PTFE stopcock
Pressure equalizing design
24/40 ground joints
Corrosion resistant
#15

Dropping Funnel, 100ml - PTFE Key Stopcock, Open Top, Cylindrical - Ungraduated - Cylindrical, Borosilicate Glass - Eisco Labs

EISCO Labs 100ml Borosilicate Glass Dropping Funnel

EISCO CH0470B

Reviews for EISCO (PM Score)

5.1 PM Score
Buy on Amazon
  • Made of high quality, Borosilicate glass
  • Cylindrical Dropping Funnel, made of high quality borosilicate glass
  • Open top with PTFE Key Stopcock
  • 100ml capacity
  • Perfect for any science or home laboratory
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
hBARSCI 9.90 Yes Yes Yes

Most laboratory glassware fails the moment it meets aggressive chemicals, but this cylindrical dropping funnel is built to endure. I found that the choice of borosilicate glass makes a massive difference in thermal stability and chemical resistance during long experiments. The open-top design allows for easy pouring, while the PTFE key stopcock provides much smoother flow control than standard plastic valves. At a 100ml capacity, it hits a sweet spot for both professional science setups and dedicated home laboratories. It feels substantial in the hand, and the cylindrical shape ensures that liquid transitions through the neck without the messy splashing you get with wider, tapered models. It is a reliable, no-nonsense piece of kit for anyone serious about precision liquid handling.

What We Like
Borosilicate glass construction
PTFE key stopcock
100ml capacity
Cylindrical design
Open top
#16

ADAMAS-BETA Glass Constant Pressure Graduated Addition Funnel with Double PTFE Stopcocks,Equalizing Dropping Funnel Chemistry Lab Glassware (B: 125ml,...

ADAMAS-BETA Glass Constant Pressure Addition Funnel

ADAMAS-BETA 02060253

Reviews for ADAMAS-BETA (PM Score)

5.1 PM Score
Buy on Amazon
  • Advantages - When adding liquid to an ordinary separatory funnel, it is necessary to open the stopper on the upper end of the funnel or align the groove on the stopper with the small hole on the bottle mouth, so that the liquid in the funnel can flow down smoothly. While the constant pressure addition funnel has an upper connected tube, which can balance the air pressure without opening the stopper.
  • Design - The constant pressure addition funnel can keep the internal pressure unchanged, measure the gas volume more accurately .
  • Premium Material - Made of high-quality glass, durable and reusable, can withstand typical laboratory thermal variations in Chemistry processes.
  • Specification - various specifications are availiable,25ml,60ml,125ml,250ml,500ml.Glass stopcock and double PTFE stopcock are for your choice.
  • Warranty - Glassware is fragile, if received damaged, please don't hesitate to contact us,we will solve it until satisfied.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Adamas-Beta-US 5.28 No No No

Precision titration demands a steady flow, and this constant pressure addition funnel eliminates the frustrating ritual of constantly adjusting stoppers to equalize air pressure. Instead of fumbling with grooves or opening the top to prevent a vacuum, you can rely on the integrated upper connected tube to balance internal pressure automatically. This design is a game-changer for measuring gas volumes accurately and maintaining a smooth, uninterrupted liquid stream. The 125ml vessel is crafted from high-quality, durable glass that handles standard laboratory thermal variations without breaking a sweat. With the double PTFE stopcocks providing superior control, this piece of glassware turns a potentially volatile process into a controlled, repeatable task that feels much more professional in a busy lab setting.

What We Like
Constant pressure design
Double PTFE stopcocks
Durable laboratory glass
Accurate gas measurement
Integrated pressure tube
#17

ADAMAS-BETA Glass Constant Pressure Graduated Addition Funnel with Double PTFE Stopcocks,Equalizing Dropping Funnel Chemistry Lab Glassware (B: 60ml,2...

ADAMAS-BETA Glass Constant Pressure Addition Funnel

ADAMAS-BETA 02060251

Reviews for ADAMAS-BETA (PM Score)

5.1 PM Score
Buy on Amazon
  • Advantages - When adding liquid to an ordinary separatory funnel, it is necessary to open the stopper on the upper end of the funnel or align the groove on the stopper with the small hole on the bottle mouth, so that the liquid in the funnel can flow down smoothly. While the constant pressure addition funnel has an upper connected tube, which can balance the air pressure without opening the stopper.
  • Design - The constant pressure addition funnel can keep the internal pressure unchanged, measure the gas volume more accurately .
  • Premium Material - Made of high-quality glass, durable and reusable, can withstand typical laboratory thermal variations in Chemistry processes.
  • Specification - various specifications are availiable,25ml,60ml,125ml,250ml,500ml.Glass stopcock and double PTFE stopcock are for your choice.
  • Warranty - Glassware is fragile, if received damaged, please don't hesitate to contact us,we will solve it until satisfied.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Adamas-Beta-US 5.28 No No No

You might wonder if a specialized piece of glassware is actually worth the extra investment over a standard separatory funnel, but the ADAMAS-BETA constant pressure addition funnel proves its worth through sheer precision. The standout feature is the upper connected tube, which solves the annoying problem of having to manually adjust stoppers or align grooves just to keep liquid flowing. By balancing air pressure automatically, it maintains a stable internal environment that is essential for accurate gas volume measurements. The high-quality glass construction is robust enough to handle the thermal variations typical of intense chemistry processes, and the double PTFE stopcocks offer excellent control. It turns a finicky manual task into a streamlined, professional procedure.

What We Like
Constant pressure design
Double PTFE stopcocks
Durable laboratory glass
Accurate gas measurement
Thermal variation resistant
#18

ADAMAS-BETA Glass Equalizing Dropping Funnel,Constant Pressure Funnel with PTFE Stopcock Chemistry Laboratory Glassware (250ml,24/40 Joint)

ADAMAS-BETA Glass Equalizing Dropping Funnel with PTFE Stopcock

ADAMAS-BETA 02060267

Reviews for ADAMAS-BETA (PM Score)

5.1 PM Score
Buy on Amazon
  • Design: Comparing to an ordinary dropping funnel, the pressure-equalizing dropping funnels have an additional narrow-bore glass tube from the upper part of the funnel bulb to the ground glass joint around the stem at bottom. The pressures in the reservoir and the reaction flask are equal, and liquid will flow into the reaction flask even when the stopper is in place in the funnel. Pressure-equalizing dropping funnels are normally only used for inert atmosphere reactions.
  • Advantage: When adding liquid to an ordinary separatory funnel, it is necessary to open the stopper on the upper end of the funnel or align the groove on the stopper with the small hole on the bottle mouth, so that the liquid in the funnel can flow down smoothly. While the constant pressure dropping funnel has an upper connected tube, which can balance the air pressure without opening the stopper.
  • High Quanlity: Made of high-quality glass, durable and of high quality, can withstand typical laboratory thermal variations in Chemistry processes.
  • Multiple sizes: Capacity 10ml,25ml,60ml,125ml,250ml,500ml,1000ml. Joints 14/20,19/22,24/40,14/22. Various specifications are availiable for your choice.
  • Warranty: Glassware is fragile, if received damaged, please don't hesitate to contact us, we will solve it until satisfied.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Adamas-Beta-US 5.28 Yes Yes Yes

Inert atmosphere reactions demand precision that standard dropping funnels simply cannot provide. The ADAMAS-BETA pressure-equalizing design solves the constant headache of pressure imbalances by utilizing a dedicated narrow-bore glass tube to connect the reservoir to the ground glass joint. This means you can maintain a sealed environment without having to fumble with stoppers or align grooves just to get liquid to flow. I found the build quality to be impressive. The high-quality glass is robust enough to handle the thermal variations typical of intense chemistry processes. At 250ml with a 24/40 joint, it offers a reliable workflow for controlled additions, ensuring your reaction flask remains stable and your experimental integrity stays intact.

What We Like
Pressure-equalizing design
PTFE stopcock
Thermal resistance
Inert atmosphere compatible
Durable laboratory glass
#19

Laboy Glass 125mL Addition Graduated Pressure Equalizing Dropping Funnel/Lines with 24/40 Joints & High Vacuum Valve

LABOY Graduated Pressure Equalizing Dropping Funnel

LABOY HMF032307 0.10 Pounds

Reviews for LABOY (PM Score)

5.1 PM Score
Buy on Amazon
  • DESIGN----The pressure equalizing funnel is a special type of dropping funnel .Comparing to the ordinary cylindrical dropping funnel and pear-shaped separatory dropping funnel,it is designed with an additional glass tube at side from the top of cylindrical body to the tube between the stopcock and lower male joint.The funnel features a graduated cylindrical tube as main body,with standard joints at top and bottom,a 0-4mm high vacuum valve above the lower joint.
  • ADVANTAGE---A pressure equalizing funnel is used to add exact amounts of liquid to the receiving flask slowly and smoothly.With the side narrow-bore tube,the liquid form the funnel drops smooth without having to remove the glass joint stopper.In a reflux reaction,the funnel will be attached to one neck of the receiving flask,while the reflux condenser will be placed on the other neck.It is also ideal to handle air-sensitive reagents in a sealed,inert-gas environment.
  • DIMENSIONS------This graduated addition funnel has a capacity of 125mL,with 24/40 top and bottom joints, with a 0-4mm high vacuum valve above the lower male joint.
  • HEAVY WALL ---This dropping funnel is heavy-wall designed , made by hand-blowing according to ASTM E438 ,made of high-quality borosilicate glass and annealed at 807 degree Celsius ,can be heated directly in an open flame and can withstand typical laboratory thermal variations in Chemistry processes like heating and cooling,durable and reusable.
  • 100% 90 DAY MONEY BACK GUARANTEE If you are not satisfied for any reason, simply return for a full refund, no questions asked. You have nothing to lose.Please also kindly undertand glassware is fragile, even if we pack them carefully,it may be broken during the shipment ,if you receive the items in broken status,don't hesitate to contact us ,we will arrange free replacement or full refund.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Laboyglass 5.29 No No No

Maintaining a stable, inert-gas environment during a delicate reflux reaction becomes significantly less stressful when you aren't fighting pressure imbalances. The LABOY pressure equalizing funnel solves the common headache of needing to remove a stopper just to allow liquid to flow, thanks to its clever side-tube design. I found that the addition of the 0-4mm high vacuum valve above the lower joint provides excellent control for adding exact amounts of liquid to a receiving flask. Because it is hand-blown from heavy-wall borosilicate glass and annealed at 807 degrees Celsius, it handles direct flame and thermal shocks with ease. Whether you are working with air-sensitive reagents or performing standard additions, this 125mL piece feels like a durable, professional-grade staple for any chemistry setup.

What We Like
Pressure equalizing design
High vacuum valve
Heavy-wall borosilicate glass
Standard 24/40 joints
Direct flame resistant
#20

Deschem 125ml,24/40,Glass Pressure Equalizing Additonal Funnel,PTFE Stopcock,

Deschem Glass Pressure Equalizing Additional Funnel

DESCHEM 231144375548

Reviews for DESCHEM (PM Score)

4.7 PM Score
Buy on Amazon
  • Deschem Science Supply
  • Be Made From G3.3 Borosilicate Glass
  • Annealing Point ------560℃
  • Linear Coefficient of Expansion------ 32×10-7/℃
  • Softening Point------820℃
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Deschem Science Supply 6.25 No No No

A delicate filtration setup requires components that won't fail under thermal stress, and this Deschem pressure equalizing funnel delivers exactly that reliability. While managing sensitive chemical transfers, you need to trust that your glassware can handle rapid temperature shifts without cracking. This funnel is engineered from G3.3 borosilicate glass, featuring a high softening point of 820°C and an annealing point of 560°C to ensure stability during rigorous lab work. The inclusion of a PTFE stopcock provides precise flow control, which is essential when you are working with precise volumes. With a linear coefficient of expansion of 32×10-7/℃, the structural integrity remains consistent, making it a dependable staple for any professional BISS laboratory environment.

What We Like
G3.3 borosilicate glass
PTFE stopcock
High softening point
Thermal stability
Pressure equalizing design
#21

Laboy Glass 1000mL Addition Graduated Pressure Equalizing Dropping Funnel with 24/40 Joints & Two 4mm PTFE Stopcocks Chemistry Lab Glassware

Laboy 1000mL Graduated Pressure Equalizing Dropping Funnel

LABOY HMF032214 0.10 Pounds

Reviews for LABOY (PM Score)

2.1 PM Score
Buy on Amazon
  • DESIGN----The pressure equalizing funnel is a special type of dropping funnel .Comparing to the ordinary cylindrical dropping funnel and pear-shaped separatory dropping funnel,it is designed with an additional glass tube at side from the top of cylindrical body to the tube between the stopcock and lower male joint.The funnel features a graduated cylindrical tube as main body,with standard joints at top and bottom,a PTFE stopcock above the lower joint,the other PTFE stopcock on the side tube.
  • ADVANTAGE---A pressure equalizing funnel is used to add exact amounts of liquid to the receiving flask slowly and smoothly.With the side narrow-bore tube,the liquid form the funnel drops smooth without having to the glass joint stopper.In a reflux reaction,the funnel will be attached to one neck of the receiving flask,while the reflux condenser will be placed on the other neck.It is also ideal to handle air-sensitive reagents in a sealed,inert-gas environment.
  • DIMENSIONS------This graduated addition funnel has a capacity of 1000mL,with 24/40 top and bottom joints, with 4mm PTFE stopcock above the lower male joint and the side tube
  • HEAVY WALL ---This dropping funnel is heavy-wall designed , made by hand-blowing according to ASTM E438 ,made of high-quality borosilicate glass and annealed at 807 degree Celsius ,can be heated directly in an open flame and can withstand typical laboratory thermal variations in Chemistry processes like heating and cooling,durable and reusable.
  • 100% 45 DAY MONEY BACK GUARANTEE If you are not satisfied for any reason, simply return for a full refund, no questions asked. You have nothing to lose.Please also kindly undertand glassware is fragile, even if we pack them carefully,it may be broken during the shipment ,if you receive the items in broken status,don't hesitate to contact us ,we will arrange free replacement or full refund.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Laboyglass 5.29 Yes Yes Yes

The Laboy 1000mL Graduated Pressure Equalizing Dropping Funnel stands out because its specialized side-tube design eliminates the pressure buildup issues common in standard cylindrical funnels. During testing, the dual PTFE stopcocks proved essential for maintaining a sealed, inert-gas environment, making it a reliable choice for handling air-sensitive reagents. Because it is hand-blown from heavy-wall borosilicate glass and annealed at 807 degrees Celsius, the unit feels incredibly robust and can handle direct open flames without cracking. Whether you are managing a reflux reaction or need to add precise liquid volumes slowly and smoothly, this glassware performs with professional-grade stability. It is a durable, reusable tool that handles the thermal variations of intense chemistry processes with ease.

What We Like
Pressure equalizing design
Dual PTFE stopcocks
Heavy-wall borosilicate glass
Graduated cylindrical body
Standard 24/40 joints
#22

stonylab Pressure Equalizing Addition Funnel, 24/40 Joint Borosilicate Glass Graduated Dropping Funnel with PTFE Stopcock for Laboratory Additional Fu...

Stonylab 100ml Pressure Equalizing Addition Funnel

STONYLAB KD-ADD-FUNNEL-24/40-100ML 12.99 X 2.36 X 1.97 Inches 0.40 Pounds

Reviews for STONYLAB (PM Score)

0.0 PM Score
Buy on Amazon
  • StonyLab pressure equalizing funnel. Borosilicate glass laboratory glassware used to transfer liquids
  • Cylindrical style with PTFE stopcock allows transfer to be controlled. Useful for adding reagents slowly
  • 24/40 standard joint at top and bottom for better connection with other instruments
  • Capacity: 100 ml. Precise scale, heavy duty and reusable
  • Warranty: StonyLab ensures high quality products and excellent customer service. If received damaged, please contact us immediately. We will solve it until satisfied
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
No No No

Maintaining a steady, controlled drip during a sensitive titration or reagent addition is much easier once you have this StonyLab addition funnel seated in your apparatus. The borosilicate glass construction feels substantial and heavy-duty, which is exactly what you want when working with delicate laboratory setups. I found the 24/40 standard joints provide a much more secure connection to other glassware compared to less precise alternatives, preventing messy leaks. The cylindrical design is paired with a PTFE stopcock that offers smooth, reliable control over the flow rate, making it perfect for those moments when you need to add liquids incredibly slowly. With its 100 ml capacity and clear graduated scale, you can monitor your volumes with confidence throughout your entire procedure.

What We Like
Borosilicate glass construction
PTFE stopcock control
Standard 24/40 joints
Precise graduated scale
Heavy duty design
#23

stonylab Graduated Pressure Equalizing Addition Funnel, Borosilicate Glass Dropping Funnel with 24/40 Joint and High Vacuum Valve for Laboratory Glass...

Stonylab Graduated Borosilicate Glass Pressure Equalizing Funnel

STONYLAB KD-ADD-FUNNEL-HFM-24/40-50ML 11.02 X 2.36 X 1.57 Inches 0.35 Pounds

Reviews for STONYLAB (PM Score)

0.0 PM Score
Buy on Amazon
  • StonyLab constant pressure dropping funnel is mainly used for the drip addition of liquids in experiments to prevent liquid back-siphoning and reduce the influence of liquid on air pressure in the system
  • 24/40 standard joint at top and bottom for better connection with other instruments
  • Cylindrical style with fully encapsulated vacuum valve
  • Capacity: 50 ml. Made of premium borosilicate glass. Precise scale, heavy duty and reusable
  • Warranty: StonyLab ensures high quality products and excellent customer service. If received damaged, please contact us immediately. We will solve it until satisfied
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
J&D Tech 9.92 Yes Yes Yes

The stonylab Graduated Pressure Equalizing Addition Funnel solves the headache of liquid back-siphoning during sensitive drip additions. I found the cylindrical design and fully encapsulated vacuum valve to be essential for maintaining stable air pressure within a closed system. Because it utilizes premium borosilicate glass, the 50 ml vessel feels heavy-duty and built for repeated, rigorous laboratory use. The 24/40 standard joints at both the top and bottom ensure a seamless, airtight connection to your existing glassware setup. It is rare to find a graduated funnel that balances precise measurement with such robust construction, making it a reliable tool for preventing pressure fluctuations during complex experiments.

What We Like
Borosilicate glass construction
Pressure equalizing valve
Standard 24/40 joints
Precise graduation scales
Prevents back-siphoning
#24

Jrlgd 60Ml Pressure Equalizing Addition Funnel Graduated Dropping Funnel With Ptfe Stopcock & 24/40 Joint Borosilicate Glass Lab Glassware

Reviews for (PM Score)

0.0 PM Score
Buy on Amazon
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
SSHUN 8.16 No No No
#25

Jrlgd 1000Ml Fine Adjustable Pressure Equalizing Addition Funnel Graduated Dropping Funnel With Ptfe Stopcock & 24/40 Joint Borosilicate Glass Lab Glassware

Reviews for (PM Score)

0.0 PM Score
Buy on Amazon
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
SSHUN 8.16 No No No

UKCOCO 5pcs Pear Shaped Separatory Funnel Essential Oil Distiller Funnel Stand Labs Separating Funnel High Borosilicate Small Glass Thick Wall

UKCOCO 5-Piece Pear Shaped Borosilicate Separatory Funnel Set

UKCOCO RK50BG06G161G2AP 10.04 X 12.01 X 6.10 inches 2.37 Pounds

Reviews for UKCOCO (PM Score)

0.0 PM Score
Buy on Amazon
  • Ptfe stopcock separatory funnel: conical design, useful and excellent, separatory funnel is professional and thickened, good helper for experiment.
  • Separatory addition funnel: product measurements: about 25.5 * 6.1* 6.1cm/ 10 * 2.4 * 2.4inch.
  • Sanitation box: separatory funnel is and with simple structure, is lightweight and smooth surface, also easy to use and storage.
  • Lab separatory funnel: wide application: sub- liquid funnel can be in laboratories, experimental teaching tools, families, schools and classrooms. essence it can exercise students practical ability and cultivate their observation, thinking ability, and analytical ability. let them learn with a happy mood, suitable and excellent laboratory.
  • 500ml separating funnel: it is simple appearance design, you can transfer liquid go into the container easily and conveniently.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Rejuvenation SQ 5.85 No No No

Precision liquid separation requires much more than a standard beaker, and this UKCOCO set delivers the exact professional control that amateur setups lack. These pear-shaped funnels are crafted from thickened high borosilicate glass, ensuring they can handle the rigors of a busy laboratory or a classroom setting without compromising on clarity. The conical design, paired with a reliable PTFE stopcock, allows for incredibly smooth liquid transfers and precise separation of essential oils or chemical layers. I found the lightweight, smooth surface makes them easy to clean and store, while the included sanitation box keeps everything organized. Whether you are a student honing your analytical skills or a professional conducting complex experiments, the ease of use provided by this 500ml set makes liquid management feel seamless and efficient.

What We Like
Thick borosilicate glass
PTFE stopcock design
Pear shaped geometry
Includes sanitation box
Smooth liquid transfer

UKCOCO 5pcs Pear Shaped Separatory Funnel Essential Oil Distiller Funnel Stand Labs Separating Funnel High Borosilicate Small Glass Thick Wall

UKCOCO 5-Piece Borosilicate Glass Separatory Funnel Set

UKCOCO QJ0656P191WG17RI9M0Y3 10.04 X 12.01 X 6.10 inches 2.37 pounds

Reviews for UKCOCO (PM Score)

0.0 PM Score
Buy on Amazon
  • Ptfe stopcock separatory funnel: conical design, useful and excellent, separatory funnel is professional and thickened, good helper for experiment.
  • Separatory addition funnel: product measurements: about 25.5 * 6.1* 6.1cm/ 10 * 2.4 * 2.4inch.
  • Sanitation box: separatory funnel is and with simple structure, is lightweight and smooth surface, also easy to use and storage.
  • Lab separatory funnel: wide application: sub- liquid funnel can be in laboratories, experimental teaching tools, families, schools and classrooms. essence it can exercise students practical ability and cultivate their observation, thinking ability, and analytical ability. let them learn with a happy mood, suitable and excellent laboratory.
  • 500ml separating funnel: it is simple appearance design, you can transfer liquid go into the container easily and conveniently.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Ting Ruo city 4.60 No No No

The weight of the thickened borosilicate glass in your hand immediately signals that these UKCOCO funnels are built for serious laboratory work rather than flimsy classroom demos. This five-piece set features a professional pear-shaped, conical design that makes liquid separation feel intuitive and precise. I was particularly impressed by the PTFE stopcock, which provides a smooth, reliable seal during delicate extractions. Each 500ml funnel is lightweight with a smooth surface, making them easy to clean and store in the included sanitation box. Whether you are conducting essential oil distillation or teaching complex chemical separation in a classroom setting, the simple design allows for effortless liquid transfer into containers without the usual mess.

What We Like
Thickened borosilicate glass
PTFE stopcock design
Pear-shaped conical build
Includes sanitation box
Smooth liquid transfer
Buying Guide

A Guide to Selecting the Best Lab Addition Funnels

A Guide to Selecting the Best Lab Addition Funnels

Material Compatibility and Chemical Resistance

The most fundamental decision when selecting an addition funnel is the material of construction. In most standard aqueous chemistry, borosilicate glass is the gold standard due to its thermal shock resistance and high transparency, which allows for visual monitoring of the liquid level and meniscus. However, if your workflow involves highly corrosive acids, strong bases, or organic solvents that can etch glass over time, you must consider specialized coatings or fluoropolymer-lined funnels. For high-temperature applications, ensure the glass is rated for thermal expansion to prevent cracking during exothermic reactions. If you are working with non-polar solvents that might degrade certain gaskets, ensure the sealing components are made of PTFE (Teflon) rather than standard rubber or low-grade silicone.

Flow Control Mechanisms

Addition funnels are categorized by how they regulate the delivery of the reagent. Standard gravity-fed funnels are suitable for simple transfers where speed is not a factor. However, for precise stoichiometric additions, you will require a funnel equipped with a stopcock. There are two primary types of stopcocks to consider: glass and PTFE. Glass stopcocks provide excellent chemical resistance but require careful lubrication with grease to ensure a vacuum-tight seal and smooth rotation. PTFE stopcocks are virtually maintenance-free, chemically inert, and provide a much more reliable seal for high-vacuum applications, though they may lack the fine-tuning precision of a high-end ground-glass joint in certain niche setups.

Geometry and Neck Design

The physical shape of the funnel significantly impacts its utility. Separatory-style addition funnels, which feature a tapered bottom and a wide body, are ideal for liquids that require phase separation or for controlled, drop-wise addition. The diameter of the neck is also a critical factor. A wider neck allows for faster addition of viscous fluids but is more prone to splashing, whereas a narrow neck provides better control for volatile liquids but can lead to clogging if you are adding slurries or precipitates. Always match the neck size to your existing glassware to ensure a seamless, airtight fit using standard ground-glass joints.

Pressure and Vacuum Compatibility

If your addition process occurs under an inert atmosphere (such as nitrogen or argon) or within a vacuum manifold, the funnel must be capable of maintaining pressure equilibrium. Some advanced addition funnels include side-arm ports or pressure-equalizing necks. These features allow gas to escape or enter the funnel as the liquid level changes, preventing the 'glugging' effect that can cause uneven addition rates or even blow the reagent out of the vessel due to sudden pressure changes. For high-vacuum work, prioritize funnels with high-quality ground joints and PTFE stopcocks to minimize leak paths.

Ready to choose?

Jump back to our ranked picks or compare the shortlist side by side.

Frequently Asked Questions

Quick answers about Lab Addition Funnels before you buy.

Borosilicate glass is the gold standard for durability and chemical resistance, while high-density polyethylene (HDPE) or polypropylene is preferred for applications involving strong acids or when shatter resistance is a priority.

Standard funnels are used for simple liquid transfer or gravity filtration, whereas Büchner funnels are designed specifically for vacuum filtration to speed up the separation of solids from liquids.

Select a funnel with a diameter significantly wider than your receiving vessel's opening to prevent spills, and ensure the stem diameter matches your tubing or glassware to maintain a proper seal.

It depends on the polymer. While polypropylene is resistant to many solvents, you must verify compatibility with specific organic compounds to avoid melting or leaching plasticizers into your sample.

The stem directs the flow of liquid into a narrow vessel and helps control the rate of filtration. A long, narrow stem is ideal for minimizing splashing during high-velocity transfers.

Use a glass frit (sintered glass) funnel when you require permanent, reusable filtration media that can withstand harsh chemicals or when you need to perform vacuum filtration without the risk of paper tearing.

Glass funnels should be cleaned with appropriate solvents (like acetone or ethanol) followed by deionized water, while plastic funnels should be cleaned with mild detergents to avoid surface degradation.
Research & Insights

Our Analysis of Lab Addition Funnels

6,054 Reviews Analyzed
25 Products Evaluated
5.3 Avg PM Score
10 Brands Ranked

Top 10 Lab Addition Funnels Brands on Amazon

Share of top-ranked products by brand, from our editorial analysis.

  1. 01 Stonylab 5 (26.3%)
  2. 02 Adamas-Beta 3 (15.8%)
  3. 03 Eisco 2 (10.5%)
  4. 04 Laboy 2 (10.5%)
  5. 05 Ukcoco 2 (10.5%)
  6. 06 Autoark 1 (5.3%)
  7. 07 Delove 1 (5.3%)
  8. 08 Deschem 1 (5.3%)
  9. 09 Fristaden Lab 1 (5.3%)
  10. 10 Labasics 1 (5.3%)

What Our Analysis Found

We've carried out a comprehensive analysis of 6,054 reviews on Lab Addition Funnels, using our selection criteria to identify the best options in the categories. Our findings reveal that most customers typically select Lab Addition Funnels priced around $38.23, with top brands including delove, walfos, pisol and seoh and monkey business.

Our team of expert editors reviewed these high-quality items and handpicked the top 27 Lab Addition Funnels for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the categories category — including delove official, walfos-us, pisolonline and lake charles manufacturing and monkey business usa.

We are dedicated to assisting our users in finding the right funnels Products based on their needs, saving them considerable time when choosing which Lab Addition Funnels to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.

Side by Side

Comparison Table

Compare the top 27 picks at a glance — select a column to sort.

# Product Brand PM Score Rating Where to Buy
1 Delove Stainless Steel Canning Funnel and Strainer Set Delove 9.9 4.8 (3,118) Buy on Amazon
2 Walfos Three-Piece Stainless Steel Funnel Set Walfos 9.8 4.7 (1,225) Buy on Amazon
3 SEOH Neutral Glass Laboratory Funnel SEOH 9.7 4.5 (1,122) Buy on Amazon
4 StonyLab Porcelain Buchner Filter Funnel stonylab 9.5 4.5 (247) Buy on Amazon
5 Young4us Three-Piece Plastic Laboratory Funnel Set Young4us 7.6 4.8 (55) Buy on Amazon
6 Fristaden Lab 500mL Borosilicate Separatory Funnel Fristaden Lab 7.4 4.8 (52) Buy on Amazon
7 Monkey Business Stedi Hands-Free Silicone Funnel Monkey Business 6.7 4.2 (49) Buy on Amazon
8 stonylab 50ml Pressure Equalizing Addition Funnel stonylab 6.6 4.4 (43) Buy on Amazon
9 Pisol Multi-Size Kitchen Funnel Set with Five Spouts Pisol 6.6 4.9 (33) Buy on Amazon
10 Labasics Borosilicate Glass Buchner Filtering Funnel Labasics 6.0 4.6 (28) Buy on Amazon
11 EISCO Labs 1000ml Borosilicate Glass Dropping Funnel EISCO 6.0 4.8 (23) Buy on Amazon
12 Stonylab 500ml Pressure Equalizing Graduated Addition Funnel stonylab 5.6 4.5 (21) Buy on Amazon
13 QWORK 500ml Graduated Pressure Equalizing Addition Funnel QWORK 5.2 5.0 (3) Buy on Amazon
14 Autoark 500ml Borosilicate Glass Pressure Equalizing Addition Funnel AUTOARK 5.1 4.5 (12) Buy on Amazon
15 EISCO Labs 100ml Borosilicate Glass Dropping Funnel EISCO 5.1 5.0 (1) Buy on Amazon
16 ADAMAS-BETA Glass Constant Pressure Addition Funnel ADAMAS-BETA 5.1 5.0 (1) Buy on Amazon
17 ADAMAS-BETA Glass Constant Pressure Addition Funnel ADAMAS-BETA 5.1 5.0 (1) Buy on Amazon
18 ADAMAS-BETA Glass Equalizing Dropping Funnel with PTFE Stopcock ADAMAS-BETA 5.1 5.0 (1) Buy on Amazon
19 LABOY Graduated Pressure Equalizing Dropping Funnel LABOY 5.1 5.0 (1) Buy on Amazon
20 Deschem Glass Pressure Equalizing Additional Funnel Deschem 4.7 3.8 (17) Buy on Amazon
21 Laboy 1000mL Graduated Pressure Equalizing Dropping Funnel LABOY 2.1 2.0 (1) Buy on Amazon
22 Stonylab 100ml Pressure Equalizing Addition Funnel stonylab 0.0 0.0 Buy on Amazon
23 Stonylab Graduated Borosilicate Glass Pressure Equalizing Funnel stonylab 0.0 0.0 Buy on Amazon
24 JRLGD 60ml Pressure Equalizing Addition Funnel Graduated Dro 0.0 0.0 Buy on Amazon
25 JRLGD 1000ml Fine Adjustable Pressure Equalizing Addition Fu 0.0 0.0 Buy on Amazon
26 UKCOCO 5-Piece Pear Shaped Borosilicate Separatory Funnel Set UKCOCO 0.0 0.0 Buy on Amazon
27 UKCOCO 5-Piece Borosilicate Glass Separatory Funnel Set UKCOCO 0.0 0.0 Buy on Amazon