Best Enjoyist Lab Rubber Stoppers in 2026

Quantity: 19 Pieces,#000--#6,Each sizes two,and one piece #7.

Size：Assorted Size #000 #00 #0 #1 #2 #3 #4 #5 #6 #7

High-quality Material: Permium rubber

♛【What You Get】: What you will have is a set of high temp silicone caps and plugs with a total of 80pcs in 16 sizes, they can be used to cover holes and pipe ends of various sizes. And, different colors of caps and plugs can help you distinguish different pipes or projects. They are placed in a sturdy carton for easy transportation and storage.

♛【High Temp Resistance】: Our end caps and plugs can bear high temperature up to 216-315 Celsius (420-600 degree), they will not melt or give off unpleasant smell during powder coating, therefore, you can use them in high temp environment with confidence.

♛【Advanced material】: Our products are made of high-quality silicone rubber, this is a no-toxic and odorless environmentally friendly material, so it will not cause harm to the human body or the environment. Moreover, this material is also resistant to acids and alkalies, will not corrode or melt easily.

Heat proof up to 600°F

Flexible, durable and reusable

Will not crack, shrink, harden or break

These black stoppers are made of solid natural rubber.

11 assorted sizes: 000# 00# 0# 1# 2# 3# 4# 5# 6# 7# 8#,wide choice for your application.

Assorted sizes are ideal for concentrated solutions,such as flask,test tube or other laboratory applications.

Quantity: 29 Packs,000# 10 pack, 00# 4 pack, #0---#6 each size 2 pack, 7# one pack.

Size：Assorted Size #000 #00 #0 #1 #2 #3 #4 #5 #6 #7

High-quality Material: Permium rubber,Without hole.

Quantity: 22 Pcs,#000--#6, Each size two.#7--#10, Each size one.

Size：Assorted Sizes (000# 00# 0# 1# 2# 3# 4# 5# 6# 7# 8# 9# 10#)

High-quality Material: Permium rubber,Ideal for laboratory, household, and industrial applications.

Please read the dimensions description listing carefully and confirm the dimensions you wanted.

Top diameter: 42mm -- Bottom diameter: 32mm -- Length: 30mm

High-quality Material: Permium rubber,Ideal for laboratory, household, and industrial application

Tapered Design - Smooth and tapered sides make these stoppers easy to plug and pull. All United Scientific rubber stoppers are reusable, and promote a sustainable laboratory or classroom environment.

Natural Rubber - Made from premium natural rubber, not easy to deform, elastic and great for sealing. Manufactured according to laboratory standards

Extensive Use - Rubber stopper Ideal for laboratory and industrial use, can be used to seal test tubes, flasks, etc. Available in a wide range of sizes.

Our StonyLab White Rubber Stoppers provide exceptional seal for many applications

Please read the dimension description image carefully before making a decision (might have 1mm measurement error)

Exhibit excellent resilience and retain pliability over a long period

These stoppers are made of solid natural rubber.

11 assorted sizes: 000# 00# 0# 1# 2# 3# 4# 5# 6# 7# 8#,wide choice for your application.

Assorted sizes are ideal for concentrated solutions,such as flask,test tube or other laboratory applications.

Quantity: 5 Pieces.

Assorted Size : #6 #7 #8 #9 #10

High-quality Material: Permium rubber

Please read the dimensions description listing carefully and confirm the dimensions you wanted.

Top diameter: 50mm -- Bottom diameter: 41mm -- Length: 32mm

High-quality Material: Permium rubber,Ideal for laboratory, household, and industrial application

Size: 11

Top Diameter: 56mm

Bottom Diameter: 48mm

14/20 Outer Joint

Hollow glass stopper

Hexagon Head Stopper; convenient to clean and rotate, and side grooves can prevent slippage

Quantity: 30 Packs, 000#10 pack,00# 5 pack,0# 3 pack, 1#-5#each size 2 pack,6#-7#each size 1 pack

High-quality Material: These Lab Plug are made of solid natural rubber, Without hole. no harm for body

Widely Application: It is a Ideal for use with non-aggressive or concentrated solutions, also as a good chioce for flask, test tubes, flasks and other laboratory apparatus need sealed

Please read the dimensions description listing carefully and confirm the dimensions you wanted.

Top diameter: 13mm -- Bottom diameter: 8mm -- Length: 17mm

High-quality Material: Permium rubber,Ideal for laboratory, household, and industrial applications.

Product Type :Mechanical Components

Package Dimensions :7.5" L X6.0" W X0.7" H

Country Of Origin :United States

Please read the dimensions description listing carefully and confirm the dimensions you wanted.

Top diameter: 45mm -- Bottom diameter: 37mm -- Length: 30mm

High-quality Material: Permium rubber,Ideal for laboratory, household, and industrial application

1. About Size:Bottom Diameter(small-end): 11mm / 0.43inch; Top Diameter(big-end): 15mm / 0.59inch; Body Height: 20mm / 0.79inch

2. Features: Material: Rubber ; Size：#00; Fit for hole: 11-15mm; Package Content: 10 Pcs x Rubber Stopper

3. Not easy to deform, moderate hardness, manufactured according to standards, materials

【Application】Our products are great for various kinds of laboratory utensils, such as flask, test tube or other laboratory applications, especially for use with non-aggressive or concentrated solutions.

【High Quality】These stoppers are made of solid natural rubber without hole. Permium rubber stopper, tapered shape design, easy to plug and pull, for a long time use.

【Size】9 Assorted Sizes: 000# 00# 0# 1# 2# 3# 4# 5# 6#, meeting your different needs.

QUALITY & DURABLE-These solid rubber plugs are made of natural rubber and are chemical resistant,so they are sturdy and durable and don't break easily,you will be satisfied with our products after you buy.

PACKAGE QUANTITY-31 Packs,000# 10 pack, 00# 5 pack, #0---#6 each size 2 pack, 7#---8# one pack.You may only need one of these many sizes, but the others will come in handy!Rubber cork also allow trimming to the size you want.

EASY TO USE-The white rubber stopper is tapered in design,easy to pull and insert,with good sealing, suitable for flasks,test tubes or other laboratory instruments that need to be sealed!

Ample Quantity: the package consists of 44 packs white rubber stoppers with assorted sizes, namely 25 packs for 000#, 8 packs for 00#, 3 packs for 0# and 2 packs for 1#, while 2# to 7#, each size has 1 pack, and you can choose the size you want, enough to meet your daily use and replacement needs

More Sizes to Choose: 000#: 0.51 x 0.67 x 0.31 inches, 00#: 0.59 x 0.87 x 0.43 inches, 0#: 0.63 x 0.94 x 0.51 inches, 1#: 0.75 x 1.02 x 0.55 inches, 2#: 0.79 x 1.06 x 0.59 inches, 3#: 0.9 x 1.06 x 0.67 inches, 4#: 1.06 x 1.1 x 0.75 inches, 5#: 1.14 x 1.1 x 0.87 inches, 6#: 1.3 x 1.14 x 0.98 inches, 7#: 1.46 x 1.18 x 1.14 inches, the tapered solid rubber stopper is compact and useful, they allow you to make final trim according to your needs

Reliable to Apply: the stopper replacement is made of quality rubber material, odorless, firm and sturdy, which is not easy to break, bringing you a nicer using experience

NEOPRENE STOPPERS WITH ONE HOLE || Pack of 10 long lasting neoprene rubber stoppers with a single hole measuring 5mm in diameter

ASTM || Stoppers are manufactured according to sizes recommended by ASTM standards

SIZE #2 || Stopper measures 25mm in length, has a base diameter measuring 16mm, and a top diameter measuring 20mm

10 Pack Size #3, Bottom diamater- 18mm/0.71", Top diamater- 24mm/0.94", Length- 25mm/0.98".

Note: no holes, a little rubber smell.

Natural rubber stoppers: suitable for labs, bottles, pipes,etc.

The Rubber Tapered Plug is great for laboratory utensils such as flasks, test tubes, or other laboratory applications, also can as a sewer plug, water pipe plug, or drain plug.

The tapered plug is in size of: Bottom Diameter: 48mm / 1.89"; Top Diameter: 56mm / 2.2"; Height: 25mm / 0.98"; In the package of: 1 x Rubber Tapered Plug

Made of rubber, with good resistance to chemicals, acid and alkali resistance, can withstand high temperatures in a short time. There is a hole in the center of the plug for inserting a glass tube, very convenient for meeting your needs.

[Saves Your Stanley Tumbler ]Isn't the lid airtight??? Lose if you fall? ? ? it didn't keep your water cold?? Can't put it in the work bag?? Our stanley cup accessories spill stopper changes the game,100% leakproof. Only for Stanley 1.0 Cup Tumbler 40oz/ 30oz

[360° Anti-leak Design] Improved transverse cutting round leak proof plug and square spill stopper,effectively seal, you can twirl your tumbler by360 degree,no spills,drink water easily. Bonus :The straw tip cover cap can stops debris and dust

[Securely Fix ] Well designed and thick silicone construction to prevent sliding and droping to keep it in place better when you shake your cup. Package Include : 1 straw cover cap,1 square spill stopper and 1 round lid leak stopper

Material: Solid rubber stopper is made of high quality rubber, which is very durable, not easy to deform and has good sealing performance.

Size: 11 Assorted Sizes - #000, #00, #0, #1, #2, #3, #4, #5, #6, #7, 8#.

Widely used: these rubber stoppers are very suitable for laboratory and industrial use, and can be used as bottle stoppers or pipe stoppers in medicine, chemical industry, scientific research and other industries.

Provides maximum sealing for vials with straight wall glass finish

Not recommended for vials with a blow-back feature

【HIGH QUALITY】Solid rubber stoppers are made of permium rubber, chemical resistant, making them extra robust, without hole.

【DETAILED SIZE】10 assorted sizes, 000# - 6# each sizes 2 pieces, 7# only one piece. Lots of variety in rubber stoppers to fit various things as needed.

【GOOD ADVANTAGE】Black rubber stopper, tapered shape design, easy to plug and pull.

Material:made of high quality Butyl rubber material, durable, washable and reusable

Size:used for 20mm glass vial and liquid culture jars, fit about 13mm diameter opening

Easy to use: no need to remove the glue plug, you can inject the culture with the injection needle