Stoppers, Supplies
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Plug-Type Rubber Sleeve Stoppers
DWK Life Sciences (Kimble)Uses include outgassing NMR tubes, pressure venting or adding reactants via syringe. Hollow, plug-type stopper fits into the neck of the glassware apparatus Sleeve extension fits over the neck for a secure seal Diaphragm can be punctured with a syringe needle Series 774261 may be…
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Silicone Stoppers with Holes
DWK Life Sciences (Kimble)General purpose single-hole silicone rubber stoppers. Steam autoclavable Opaque yellowish-white color Silicone stoppers with holes are manufactured from pure silicone rubber
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Sani-Tech® Silicone Stoppers
Saint Gobain - Bioprocess SolutionsSani-Tech® ultra-pure platinum-cured silicone stoppers outperform standard neoprene and rubber stoppers in critical laboratory and process applications. These long-life silicone stoppers are fully autoclavable and sterilizable and will not crack, spallate or invoke particle migrations that can…
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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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Septum Stoppers, Sleeve Type
ChemglassSleeve type stoppers with a hollow plugs and sleeve extensions that folds down over the neck of a vessel, tubing, etc. The diaphragm can be punctured with a syringe needle, re-sealing after the needle is withdrawn. Available in either RED or WHITE rubber.
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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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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 cap white
MilliporeSigmaEngineered for a "push on" fit in NMR tubes and ampules. The unique design provides a penetration point for cannulation and a dual seal inside the tube and on the outer sleeve. Will not break delicate, thin-wall tubing. Manufactured from one certified raw material formulation for absolute…
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SYNTHWARE Septum Stoppers, Sleeve Type
Kemtech AmericaSleeve Type Septum Stopper made from natural white rubber.
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United Scientific™ Silicone Stoppers
United Scientific SuppliesSilicone stoppers are particularly useful due to their inert and nonreactive nature. It will not impair the growth of tissue cultures and resistant to most chemical acids and solvents. Stoppers can be steam sterilized at 15 lbs. pressure. Broad working temperature range of –62 to 232°C…
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Polyethylene Stoppers
ChemglassInexpensive, tapered stopper provides for a tight, leak-proof fit while the top ring permits the stopper to be easily removed. Stoppers are made of yellow Polyethylene
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WHEATON® COMPLETEPAK 13 mm Sterile OmniFlex 3G Igloo Lyo Stopper
DWK Life Sciences (Wheaton)Sterilized, off-the-shelf, ready-to-use (RtU) primary packaging component 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, USP <85>/EP 2.6.1, The…
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Septum Stoppers, Suba-Seal®
ChemglassSuba-Seal® septa are a flanged stopper with a hollow plug and sleeve extension that folds down over the neck of the vessel. In addition to the pull over sleeve, Suba-Seal® stoppers have a series of annular serrations on the plug portion of the septa. Each of these serrations depress along…
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KIMBLE® Full Length Hex Head Hollow Glass Stopper, 24/40
DWK Life Sciences (Kimble)Hollow, hexagonal head, Standard Taper stopper May be set on the flattened top to avoid contamination of the ground surface 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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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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Gray Chlorobutyl Straight-Sided Stoppers
DWK Life Sciences (Kimble)These high quality gray chlorobutyl stoppers are used for research and pharmaceutical packaging applications. Universal gray chlorobutyl formulation passes Japanese, European and United States pharmacopeia testing for globally marketed pharmaceutical products Formulation contains no…
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Hungate stopper only for use with Hungate tubes. Specifications: Black Butyl Rubber Size: 13MM 250 each per case Dimensions: 13mm at top, to 10mm x 5mm Thick For Use With Hungate Tube: 2047-00125
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Stoppers/Adapters, Extraction Nut, NPT
ChemglassPTFE stopper is similar to CG-3002-L but with the addition of one female NPT port in the center for connection of compression fittings or pressure/vacuum gauges. PTFE stopper has an extraction nut permitting easy removal of the stopper from the glass outer joint.
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Sleeve Stoppers & Plugs
PlasticoidHollow plug to fit inside bottles, flasks, vials, or tubing with a sleeve to pull over neck to create a double seal .Septa area allows insertion of needle, with excellent re-sealing properties for air sensitive chemistry Standard Compounds include Red and White Natural Rubber, Gray Butyl on…
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Rubber Stoppers
United Scientific SuppliesConvenient assortments of various sizes of rubber stoppers in 1lb bags.
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Anaerobic Tube & stopper 18x150mm
Bellco GlassGas tight tube designed for maintaining anaerobic conditions. Useful for studies involving methane-producing bacteria. Includes gas impermeable blue butyl rubber septum type stopper. Tube is made of Type 1 Class B Borosilicate glass. Specifications: Type 1 Class B Borosilicate Glass Blue…
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Neoprene Stoppers
United Scientific SuppliesNeoprene stoppers can be used in areas where rubber would be attacked by reagents or solvents. Synthetic neoprene stoppers have good resiliency and shelf-life. They withstand petroleum products and oils as well as most inorganic acids and bases. Stopper are green for easy identification. Sold by…
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PTFE Stopper with Extraction Nut
Ace GlassStandard taper PTFE stopper with polypropylene extraction nut for easy removal from outer joints.
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Tube, Test, Stoppered
Ace GlassTest tube with interchangeable stopper; 24/40 stopper is hollow, other two solid.
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Cap Stopper, Micro
Ace GlassWith 14/10 outer joint externally threaded for making O-RING-CAP-SEAL connection with mating inner joint. Supplied with cap and O-Ring. For replacement caps, see 9590-46; for O-Rings, see 7855-720.
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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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SYNTHWARE Solid Glass Penny-Head Stoppers
Kemtech AmericaPenny-Head Stopper, Glass, Solid, Synthware, Various Joint Sizes Available.
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SYNTHWARE Septum Stoppers, Sleeve Type
Kemtech AmericaFlanged type stopper with a hollow plud and sleeve extension that folds down over the neck of vessel, tubing, etc. The diaphragm can be punctured with a syringe needle, resealing after need is withdrawn.