Best Corning Lab Flasks in 2026

CUSTOMIZE NOW: Personalization Lab stainless steel customized flask for your groomsmen. Please click "Customize Now" and start to create a unique flask and, it's totally free.

HIGH QUALITY: Stainless Steel Flask Set includes a 6 oz Flask, Funnel and black gift box (if gift box option selected). GIFT BOX option available on 'Customize Now' section. FREE engraving!

QUALITY GIFTING: GIFT BOX option available on 'Customize Now' section. FREE engraving!

Contains 1 each 50, 150, 250, 500 & 1000ml Flask

High quality inert 3.3 borosilicate glass

Height of each as follows:, 50ml = approx. 85mm, 150ml = approx. 120mm, 250ml = approx. 140mm ,500ml = approx. 175mm , 1000ml = approx. 220mm

Capacity: 500ml / 16oz. (approx.)

Graduations: 50ml, 200ml to 500ml

Height: 186mm / 7.3" (approx.)

Capacity: 1000ml

Graduations: 50ml, 250ml to 1000ml

O.D. x Height(mm): 129 x 216

3 Sizes 50ml 100ml 250ml

High quality 3.3 Borosilicate glass, Uniform wall thickness

Extra large marking spot

Capacity: 2000ml

Height: 248mm

Outside Diameter: 153mm

2000ml Flat Bottom Boiling Flask

1 Single Neck

Made of high quality glass

Capacity: 1000ml

Graduations: 200ml, 400ml to 1000ml

Height: 228mm (approx.)

CAPACITY: The U.S. Solid Cryogenic Container Liquid Nitrogen Tank Dewar can hold up to 10 Liters of liquid nitrogen

DEWAR: Dewars are designed for the sole purpose of holding extremely cold liquids such as liquid nitrogen; They have the shape, capacity, and material construction to store liquid nitrogen with a slower evaporation rate

EVAPORATION RATE: We test the evaporation rate of our liquid nitrogen tanks by completely filling them with liquid nitrogen and tracking the rate of evaporation

Made of eco-friendly food-grade plastic, durable, non-toxic and odorless.

Standard capacity: clear scale, easier to identify. Standard scale line, for accurate measurement.

Solid base design, for more stable placement, reducing measurement error.

STANDARD SIZE--- This round bottom flask designed with 24/40 standard taper outer joint,interchangeable,leak-free,comparing to common boiling flask without ground joint, it is convenient,safe,easy-operation in laboratory glassware setup. Capacity of 2000mL.

HEAT-resistance DESIGN ---With spherical bottoms,this RBF is more resistance to fracturing under vacuum, as a sphere more evenly distributes stress across its surface. Laboy glass flasks are heavy wall designed,made by hand-blowing to ensure uniform wall thickness, made of high-quality borosilicate glass and annealed at 800 degree Celsius ,can be heated directly in an open flame and can withstand typical laboratory thermal variations in Chemistry processes like heating and cooling.

WIDELY USED----The round bottom flask is widely used in organic chemistry,in a or vacuum apparatus ,it’s used a a flask and receiving flask with a glass condenser and some adapters like the 14 way adapter,take-off adapter;In a reflux process,it’s used as a reaction flask with a reflux condenser.It is also used as a flask in rotary evaporators.

100% SATISFACTION SERVICE: Our Erlenmeyer Flasks are made of high quality borosilicate glass. If they are any questions, please feel free to contact us, we will do our best to meet your satisfaction. Pls note that the stopper is very soft, you have to push hard to get in, only that it doesn't push out.

High Quality Borosilicate Glass: High temperature resistance. These borosilicate glass erlenmeyer flasks have High chemical durability and low thermal expansion.

Convenient to use: Suitable for beginners or professional use, also the students, convenient classroom borosilicate glass erlenmeyer flasks.

3 RUBBER STOPPERS INCLUDED: This set has 3 rubber stoppers for these 3 Erlenmeyer Flasks, which are sterile & can seal the liquid in the flasks perfectly for experiment.

ACCURATE SCALES: 3 Erlenmeyer Flasks in different sizes (250ml 150ml 50ml) have clear and accurate scales for you to measure liquid efficiently & accurately without any problem.

SIGNIFICANT FEATURES: Reusable, environmental friendly, will not shatter easily, easy to clean, high temperature resistance, for laboratory, chemistry, science experiment, liquid measuring, etc.

2 Pack; Capacity is 50/100/250/500mL

Material is Borosilicate Glass

High quality material and perfect handcraft

LABORATORY FLASK: This narrow mouth conical borosilicate glass flask is ideal chemistry glassware for use in laboratories, schools, and for home and STEM activities and experiments.

SAFE & DURABLE: Offering superior heat, chemical and thermal shock resistance, the flat bottom lab glassware with heavy duty rim delivers premium strength and will not shatter easily.

CLEAR METRIC MARKINGS: A graduated metric scale in white enamel makes it easy to measure liquids and approximate contents, and the lab glass flask has a large labelling area.

Class A

O.D. x Height(mm): 62 x 171

Tolerance(+/-ml): 0.01

Package contains: 1 each 50ml 150ml and 250ml glass conical flask.

Size (Diameter X Height): 50ml: 5.1cm(2.01in) x 8.5cm(3.35in); 150ml: 6.9cm(2.72in) x 12.2cm(4.8in); 250ml: 8.5cm(3.35in)X14.5cm(5.7in).

Material: these flasks of great quality are made of 3.3 Borosilicate glass, with high chemical durability and low thermal expansion, which can withstand the high temperature and thermal shocks. Microwavable and autoclavable.

Widely used as heating and reaction vessel in chemical experiments

Round Bottom Flask

Single Neck 24/40

Standard Size and Capacity: It features a 24/40 Standard Taper Outer Joint and a maximum capacity of 500ml.

Package Includes: The pack contains two 500ml Single Neck Flat bottomed flasks, perfect for storing or transporting liquids. Whether used in the lab or the home, these flasks are a great choice for any application.

Widely Used: Can be connected to a distillation, adapter for collecting and measuring liquids. Mixing solvent In a distillation apparatus,the flat bottom flasks can attach to a distillation adapter. In a soxhlet extraction, a flat bottom attaches the soxhlet extractor used as boiling and receiving flask.

CLASS A, ASTM E288 || Class A Tolerance, as per ASTM E288 standards

3 PIECE SET || Set includes three Volumetric flasks. 10ml, 25ml & 50ml capacities. Each flask includes a glass penny stopper, and features a single, white graduation mark

INDUSTRIAL QUALITY, SUPERIOR HEAT & CHEMICAL DURABILITY || Microwavable & autoclavable, with superior chemical durability. Low temperature gradient- can withstand high temperatures & thermal shocks. Made of high quality Borosilicate 3.3 glass. Designed for use in professional laboratories, but is ideal for classroom, garage and home use

Clear Material - Made of high quality borosilicate 3.3 glass, it is clear and easy to know the situation, strong and resistant to high temperatures.

Narrow Mouth - The filtering flask is designed to help you reach your perfect drink. With the narrow mouth and top finish, the flask has a smaller opening for filtration.

Large Capacity - Our Filtering Flask has a 500ml capacity, perfect for your chemistry-related needs and tasks, the Filtering Flask offers both a utility and convenience like no other.

Country Of Origin: United States

Model Number: FG5340-2000

Item Package Dimension: 12.599999987148" L x 7.99999999184" W x 6.699999993166" H

PURE SOLUTIONS: The filtering lab flask can be used to separate components or impurities in your mixtures or solutions. The filtration apparatus is built to last with tough, heat resistant borosilicate glass designed to handle boiling liquids and strong vacuums.

FAST FILTERING ACTION: The filtering and distillation kit can be used with or without a vacuum. For faster, higher volume jobs, just hook up a vacuum hose to the filtering flask and quickly pull your solution through the funnel. A lab vacuum filtration apparatus allows you to filter oil and water soluble solutions without damaging or losing heat-sensitive compounds in a distillation. This filtering flask comes with a high quality rubber stopper and aluminum clamp that allow for strong vacuums.

FAST FILTERING ACTION: The filtering and distillation kit can be used with or without a vacuum. For faster, higher volume jobs, just hook up a vacuum hose to the filtering flask and quickly pull your solution through the funnel. A lab vacuum filtration apparatus allows you to filter oil and water soluble solutions without damaging or losing heat-sensitive compounds in a distillation. This filtering flask comes with a high quality rubber stopper and aluminum clamp that allow for strong vacuums.

Capacity: 125ml

Graduations: 25ml, 50ml to 125ml

Height: 114mm

Set Includes 6 Erlenmeyer flask shot glasses feature periodic table squares for the most powerful elements known to human science; includes VODKA, RUM, SCOTCH, WHISKEY, TEQUILA, and BOURBON

These 2.5 ounce glasses feature calibration marks in milliliters allowing you to pour precise volumes of your preferred alcohol solution

Lab-grade borosilicate glass is oven, microwave, fridge, and freezer safe - Drink Periodically glassware is the real deal

50 ml Flat Bottom Boiling Flask

1 Single Neck Flat bottomed flask

Made of Borosilicate Glass

250mL CAPACITY || 250mL capacity and easy-to-read white enamel graduations every 50mL

INTEGRAL SIDE ARM || Conical flask with tubulated integral side arm adaptable to 3/8" internal diameter tubing

HEAVY WALL || Heavy wall design for safe use under vacuum pressure

1.Capacity: 250ml,6pcs

2.Height: 140mm

3.Tolerance: approximately +/- 5%

500ML CAPACITY || Single Erlenmeyer Flasks with 500mL capacity and easy-to-read white enamel graduations every 100mL

INDUSTRIAL STRENGTH || Made of high quality, heavy duty, borosilicate 3.3 glass with excellent strength against breakage. Microwavable and autoclavable, with superior chemical durability. Can withstand high temperatures and thermal shocks

SUPERIOR DURABILITY || Features uniform wall thickness ideal for heating and a reinforced rim for protection against high impacts

4pcs of 250ml (8.45oz) Boiling Flasks

Flat Bottom and short neck, without graduation

Borosilicate 3.3 glass material to prevent cracking