Lab Stoppers
This category includes a variety of stoppers, each tailored for specific needs. Rubber stoppers, known for their flexibility and tight seal, are perfect for general use in flasks and test tubes.
Convertible stoppers offer versatility, easily adapting to different lab apparatuses. Color-coded stoppers enhance lab organization, allowing for quick sample identification and reducing the risk of cross-contamination.
Lab stopper options include plug-type rubber sleeve stoppers, which provide a secure fit for more complex laboratory setups, ensuring airtight conditions for sensitive experiments.
Lab stoppers, ranging from simple rubber variants to specialized butyl stoppers and glass stoppers, are indispensable for ensuring the safety and accuracy of laboratory work.
Their ability to effectively seal and protect makes them an essential in any lab environment.
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HDPE Stopper No 13
CorningThese blue and white No. 13 PYREX® stoppers are made from linear high-density polyethylene and have closed bottoms to conform to Standard Taper stopper dimensions. The three rings on the plug provide an efficient seal. This improved design fully protects the neck in the event of accidental…
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Solid Rubber Stoppers
PlasticoidStandard Grade Size No. 000 is 18 mm long; sizes No. 00 to No. 13 are 25 mm long. Sizes No. 13 1/2, 14 and 15 are 35 mm, 36 mm and 39 mm respectively.
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Rubber Stoppers
United Scientific SuppliesRubber Stoppers packaged in convenient 1lb bags. Available in solid, 1 hole, and 2 hole versions.
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CORK STOPPERS
United Scientific SuppliesThese grade XXX tapered cork stoppers are an excellent choice for general laboratory use. They are effective for both liquid and solid mediums, and offer light weight, resilience and compressibility. Chemically inert and moisture resistant. Sold as packs of 100.
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SYNTHWARE Septum, Stopper, Sleeve Type for NMR Tubes
Kemtech AmericaSleeve Type Septum stopper made from natural white rubber for use with 5mm NMR tubes.
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No. 8 Silicone Stopper
Vee Gee ScientificSIBATA 47mm Filtration Filter Holder Components are available as replacement components, or to create a customized filter holder. Available with fritted glass support base for general and biological applications, or with removable stainless steel screen support base and PTFE gasket for ultraclean…
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Stopper Size 19/38
DWK Life Sciences (Kimble)Stoppers are used with laboratory glassware such as flasks and separatory funnels. Sizes Standard Taper 10/30 through Standard Taper 19/38 are solid Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements
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XX2014718
MilliporeSigmaDesigned for use with Millipore stainless steel vacuum filter holders Stopper Size: No. 8 Hole I.D.: 9.5mm (3/8 in.) Silicone rubber construction
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Cork Stoppers
GSC International, Inc.Quality, laboratory grade Cork Stoppers. Available in the following sizes: Size 000 Size 00 Size 0 Size 1 Size 2 Size 3 Size 4 Size 5 Size 6 Size 7 Size 8 Size 9 Size 10 Size 11 Size 12 Size 14 Size 16 Size 20 Size…
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Rubber Stoppers
United Scientific SuppliesConvenient assortments of various sizes of rubber stoppers in 1lb bags.
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Suba-Seal® septa red rubber
MilliporeSigmaWell-known as the best quality rubber turn-over closure with serrated stopper, Suba-Seal brand is available exclusively from Sigma-Aldrich. Ideal for air and moisture-sensitive chemistry procedures. After piercing with non-coring needle, rubber closes puncture, providing air and moisture tight seal…
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Rubber STOPPER,#2
Bellco GlassA laboratory rubber stopper is mainly used in chemical laboratory in combination with flasks and test tub. Specifications: Material: Made from Rubber
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SYNTHWARE Pluro-Stopper Set
Kemtech AmericaSet comes with 8 sizes. Stoppers are to be used with Buchner and Fritted glass funnels.
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Sleeve stopper septa
MilliporeSigmaSleeve stopper septa are manufactured from pure natural rubber for excellent resealability when used for cannulation techniques or from FKM rubber for high chemical resistance. Natural rubber septa are available in red and white colors and a soft rubber formulation that contains no fillers or…
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Stopper, Safe-Lab®, Flask Length, PTFE
ChemglassFlask length PTFE stopper has a Polypropylene extraction nut permitting easy removal of the stopper from the flask. All sizes are solid.
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Stoppers, Lyophilization with Ultra Pure Formulation
DWK Life Sciences (Wheaton)Ultra Pure Lyophilization Stoppers are made from a bromobutyl rubber compound containing the highest level of chemical purity. These stoppers demonstrate a very low level of moisture absorption and are ideal for most lyophilization applications. They are compatible with Water for Injection (WFI)…
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Precision Seal® rubber septa red
MilliporeSigmaThe recommended choice for use with organic chemicals and solvents, pressure applications, and cannulation techniques:Precision Seal septa are designed specifically for the rigorous requirements of chemical applications. •Precision fit: Precision Seal septa have a longer, tapered plug that seats…
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Gray Butyl Rubber Lyophilization Style Stoppers
DWK Life Sciences (Kimble)Designed for aluminum seal finish vials Two-leg style reduces possibility of legs sticking together Gray high grade butyl rubber, lyophilization style
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Precision Seal® rubber septa white
MilliporeSigmaThe recommended choice for use with organic chemicals and solvents, pressure applications, and cannulation techniques:Precision Seal septa are designed specifically for the rigorous requirements of chemical applications. The main features of our septa seal: Precision fit: Precision…
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A small, low holdup automatic head which can be completely disassembled for easy cleaning or replacement of parts. Lower column joint and side arm for condenser are 24/40. Joint on takeoff arm is 28/11. The plunger guide is 19/38 and the 10/30 thermometer joint may be used with our 8314 product…
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Suba-Seal® septa white rubber
MilliporeSigmaWell-known as the best quality rubber turn-over closure with serrated stopper, Suba-Seal brand is available exclusively from Sigma-Aldrich. Ideal for air and moisture-sensitive chemistry procedures. After piercing with non-coring needle, rubber closes puncture, providing air and moisture tight seal…
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Suba-Seal® septa red rubber
MilliporeSigmaWell-known as the best quality rubber turn-over closure with serrated stopper, Suba-Seal brand is available exclusively from Sigma-Aldrich. Ideal for air and moisture-sensitive chemistry procedures. After piercing with non-coring needle, rubber closes puncture, providing air and moisture tight seal…
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Key-Head Color-Coded Medium Length PTFE Stoppers
DWK Life Sciences (Kimble)Stoppers are used with laboratory glassware such as flasks and separatory funnels. PTFE has excellent chemical resistance and resists freezing in ground glass joints Remove the colored polyethylene handle from the PTFE stopper before cleaning or exposing to temperatures above 80 °C …
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SYNTHWARE Septum Stoppers, Sleeve Type
Kemtech AmericaSleeve Type Septum Stopper made from natural white rubber.
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Bent Vertical Hose Barb Vacuum Trap
Ace GlassThomas No. 1166W00 Trap, stopper, vacuum, bent vertical tube, 29/32 Thomas No. 1166W01 Trap, vacuum, complete, bent vertical tube, 29/32, 32mm od outer²body, 13mm od inner/side tube,body length 250mm below joint Thomas No. 1166W02 Trap, stopper, vacuum, bent vertical tube,…
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Assorted Solid Rubber Stoppers
GSC International, Inc.1 pound pack of assorted solid rubber stoppers. Sizes and quantities are as follows: Size 00: 4 each Size 0: 4 each Size 1: 4 each Size 2: 3 each Size 3: 3 each Size 4: 3 each Size 5: 3 each Size 6: 3 each Size 7: 3 each
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Twist It Stoppers, Assortment Pack
ChemglassThree twist-off seals permit easy conversion from a solid to a one, two, or three-hole stopper. Soft, resilient, natural rubber demonstrates exceptional aging characteristics and withstands repeated autoclaving. Autoclavable at 250°F for 30 minutes under water or steam conditions only (not…