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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Pennyhead stoppers are generally used in flasks and separatory funnels.
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Septum stopper, 20mm Blue Butyl Rubber
Bellco GlassManufactured from Blue Chlorobutyl. The septum stopper can withstand autoclaving 160 degree Celsius at normal autoclaving times 12-20 minutes. Specifications: Material: Blue Chlorbutyl Autoclaving: No Higher Than 160 Degree Celsius Size: 20mm Case Quantity: 100
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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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Stoppers, PTFE-Clad Glass, Spherical
Ace GlassHollow glass spherical stoppers, PTFE-Clad to provide the ultimate in no-jam engagement.
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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. •Precision fit: Precision Seal septa have a longer, tapered plug that seats…
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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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HDPE Stopper No 16
CorningThese blue and white No. 16 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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Assorted 1 Hole Rubber Stoppers
GSC International, Inc.1 pound package of assorted 1 hole rubber stoppers. Sizes and quantities are as follows: Size 00: 4 each Size 0: 4 each Size 1: 4 each Size 2: 4 each Size 3: 4 each Size 4: 3 each Size 5: 3 each Size 6: 3 each Size 7: 3 each
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Borosil® Plastic Polypropylene Flat Head Stoppers are with Interchangeable Joint and can be used with Volumetric Flask of 5645, 5647 families or for other suitable joints. Polypropylene available in sizes of 7/16 to 34/35. In collaboration with Borosil Glass Works, Foxx Life Sciences…
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WHEATON® COMPLETEPAK 13 mm Sterile Red Flip Seal
DWK Life Sciences (Wheaton)Sterilized, off-the-shelf, ready-to-use (RtU) primary packaging components Focuses your effort on core competencies and reduces lead time Streamlines process and frees up valuable clean room space USP <788>/EP 2.9.19 Particulate Matter in Injections (Vials and Stoppers), USP…
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Rubber STOPPER,#0
Bellco GlassA laboratory rubber stopper is mainly used in chemical laboratory in combination with flasks and test tub. Specifications: Material: Rubber Flask Closure Size: 0 Top Diameter: 17mm Bottom Diameter: 13.5mm Length 25mm
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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. •Precision fit: Precision Seal septa have a longer, tapered plug that seats…
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Stopper 19/22
CorningThese hollow PYREX® 19/22 Standard Taper joint and bottle stoppers are closed at the bottom. They are interchangeable with standard taper joints and bottle stoppers of the same size. These hollow stoppers are light in weight, yet very strong to reduce chipping and breakage, thus minimizing…
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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 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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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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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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Monoject™ SmarTip™ Needleless Vial Access Cannula
Cardinal HealthNo needle means no needlestick: The Monoject™ SmarTip™ needleless vial access cannula is specifically designed to access rubber stopper medication vials without the risk of needlestick injury. Penetrate vial with Monoject™ SmarTip™ cannula. For best results place…
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Polyethylene stopper Joint
MilliporeSigmaNonthreaded, wide, thick flanges. Synonyms: flask stopper; flask stoppers; stoppers
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Stopper No. 19 Cs 6
DWK Life Sciences (Kimble)Replacement part for items that are ground to stopper dimensions. Yellow and blue stopper has a closed bottom. The enlarged flange is designed to protect the neck if the glass object is tipped over.
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Stopper Pennyhead 34/45
DWK Life Sciences (Kimble)Stoppers are used with laboratory glassware such as flasks and separatory funnels. Sizes Standard Taper 24/40 and larger are hollow 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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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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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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Glindemann PTFE sealing rings
MilliporeSigma•This narrow ring seal is an alternative to a PTFE joint sleeve •Greaseless protection for air- and moisture- sensitive compounds •Can be used for prolonged storage under vacuum •Slide easily onto medium and full length taper joints •Can be used with Keck® clip and similar metal joint clips …
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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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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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Stopper Top Pk144
DWK Life Sciences (Kimble)Top Stoppers for Incubation Flasks. Rubber stoppers for flask top and sidearm provide a secure double seal Top stopper has off-center hole for insertion of center well Fits both 10 and 25 mL flasks
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PTFE stopper adapter is similar to CG-3002-L but with the addition of one female NPT port in the center. The optional PTFE compression fittings provide a convenient way to insert probes or connect PFA tubing or FEP tubing to reactors or flasks. PTFE stopper has an extraction nut permitting easy…