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Best lab stoppers - April 2026

Last Updated - April 2, 2026

1
Best Choice

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

QWORK

QWORK Glass Stopper, 5 Pcs Hex Head Glass Hollow Stopper for 24/40 Outer Joint

QWORK

$13.97

More Details
Main highlights
- Reusable: Hollow glass stopper, reusable and easy to clean.
- Package: Includes 5 Pcs Hex Head Glass Hollow Stopper.
- Material: Premium borosilicate Glass, acid and alkali resistance, heat resistance.
- Fit: For 24/40 Outer Joint glass.
$13.97
2

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

MECCANIXITY

MECCANIXITY Silicone Rubber Tapered Plug 32mm to 42mm Solid Test Tubes Bungs Stopper with Hole White for Lab Home 3 Pieces

MECCANIXITY

$11.49

More Details
Main highlights
- The tapered plug is in size of: Bottom Diameter:32mm / 1.26 inch; Top Diameter:42mm / 1.65 inch; Height: 30mm / 1.18 inch; Hole Diameter: 8mm / 0.31 inch; In the package of: 3 x Silicone Rubber Tapered Plug
- Silicone Rubber Tapered Plug is designed to protect holes or threads during a powder coating process or other projects, used for powder coating, painting, plating, anodizing, sandblasting, etc, also can be used to seal bottles flasks in the laboratory or home, etc.
- Please check the size carefully before ordering!
- Made of silicone rubber, good resistance to chemicals, can withstand high temperatures up to 600 degrees Fahrenheit (315 Celsius) 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.
- Conical design, solid, easy to install and good sealing performance, flexible and durable, not easy to crack, shrink, harden or break.
$11.49
3

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Enjoyist

27 Pack (10 Assorted Sizes) 000# - 7# Tapered Lab Bungs Solid Rubber Stoppers

Enjoyist

$8.49

More Details
Main highlights
- Without hole
- Size: 10 Assorted Sizes #000 #00 #0 #1 #2 #3 #4 #5 #6 #7
- Quantity: 27 Pieces,10 pieces #000, #00--#6,Each sizes two,and one piece #7.
- Ideal for use with non-aggressive or concentrated solutions
- High-quality Material: Permium Rubber
$8.49
4

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Eoppen

Eoppen 24Pcs Solid Rubber Stopper 11 Assorted Sizes 000# - 8# for Flask, Plug Holes, Lab Seal Rubber Stoppers

Eoppen

$7.98

More Details
Main highlights
- 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
- Packaging includes: 24Pieces, #000 size 8pcs, #00---#4 each size 2pcs, #5---#8 each size 1pcs, Can meet your different needs
- Material: Made of premium rubber, very practical, not easy to deform, no holes for good sealing performance
- Easy to use: Rubber Stoppers are tapered design, easy to insert and remove, reusable and long life
- 11 Assorted Sizes: #000, #00, #0, #1, #2, #3, #4, #5, #6, #7, 8#, wide range of options for your application
$7.98
5
Best Value
18% Off

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Lhazemu
18% Off

Laboratory Grade Rubber Stoppers, 30 Pieces Assorted Tapered Bungs Set, 11 Different Sizes from 000# to 8#, Solid Black Lab Supplies

Lhazemu

$8.16

$9.99
(18% Off)

More Details
Main highlights
- Wide Compatibility: Ideal for educational, laboratory, and scientific experiments
- Secure Seal Design: Solid construction with no hole ensures leak-proof performance for flasks, test tubes, bottles, and more
- Product Guarantee: If there is any problem with the product, we are ready to assist you
- Premium Rubber Material: Made of high-density, durable rubber offering excellent resistance against non-aggressive chemicals and concentrated solutions
- Complete Size Range: Includes #000, #00, #0, #1, #2, #3, #4, #5, #6, #7, #8. Each size #000 12 pieces (from #00 to #6) comes with 2 pieces, plus 1 piece each of #7 and #8
$8.16
$9.99 (18% Off)

Best lab stoppers - April 2026

QWORK Glass Stopper, 5 Pcs Hex Head Glass Hollow Stopper for 24/40 Outer Joint

MECCANIXITY Silicone Rubber Tapered Plug 32mm to 42mm Solid Test Tubes Bungs Stopper with Hole White for Lab Home 3 Pieces

27 Pack (10 Assorted Sizes) 000# - 7# Tapered Lab Bungs Solid Rubber Stoppers

Eoppen 24Pcs Solid Rubber Stopper 11 Assorted Sizes 000# - 8# for Flask, Plug Holes, Lab Seal Rubber Stoppers

Laboratory Grade Rubber Stoppers, 30 Pieces Assorted Tapered Bungs Set, 11 Different Sizes from 000# to 8#, Solid Black Lab Supplies

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