Test Tube Caps
Culture tube caps are essential pieces of laboratory equipment, as they ensure the safe handling of samples by sealing test tubes to prevent contamination. We have various caps available, including Kim Rak, Kim Kap, and NMR tube caps that are suitable for many uses and provide a tight and secure seal within the laboratory as well as dropper nozzles with pointed tips for fitment over the neck and dropper tip. Some stainless steel closures can provide storage for long periods.Depending on the sample access requirements, snap caps, and flange caps can provide a secure seal with minimal effort. Consider the tube, sample, and level of protection required to ensure the integrity of your results.
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Replacement polypropylene open top closures have a bonded-in 0.045” thick septa except for 1709B03, which is a 24-414 open top closure without septa. Choose an I-CHEM® 0.125” thick, 22 mm, PTFE silicone replacement septum to complete the closure system. Thin septa are also available.
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ULTRA-WARE® Filtration Caps
DWK Life Sciences (Kimble)Body is constructed of glass-filled PTFE with a vacuum adapter for 1/4” ID tubing Upper screw clamp holds a solvent pickup adapter or funnel 40-60 micron porosity fritted glass filter support is removable Supplied with a PTFE/propylene o-ring
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Bouffant Cap, Xtraclean, Green, Spunbond Polypropylene with Latex Free Elastic,…
XtraClean® (a Thomas Scientific Brand) -
PP Blk Open Hole S/Cap,13mm 13-425
Bellco GlassDesigned for standard screw thread vials. Available with or without septa. Easy on and easy off convenience with a twist of the cap that produces an evaporation proof seal. Larger opening provides a increased target area for needle penetration. Specifications: Size: 13mm Case Quantity:…
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Pleated Bouffant Cap
International EnviroGuardThis Pleated polypropylene bouffant provides a particulate barrier and helps prevent hair from contaminating a product or work environment. A low-linting, lightweight cover restrains hair and offers great ventilation, so you stay cool over long hours. This product is designed to protect against…
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Made of Polypropylene T347AQX screw cap incorporates a pierceable septum made of chemically resistant PTFE on the outside and silicone on the inside, both components being stable over a broad range of temperatures. The septum also acts as a silicone o-ring for better sample protection. It is…
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KeyGuard Bouffant Cap/Head Cove
Keystone SafetyKeyGuard (Microporous) Bouffant Cap/Head Cover - 100% Latex Free.
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Serged seams Elastic headband 21.5" diameter White Made from DuPont™ Tyvek® brand protective material Unique, patented flashspinning process creates an excellent barrier to dry particles, microorganisms and non-hazardous liquids Clean-processed garments offer lowest level of…
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PP Blk S/Cap W/PTFE Liner,13mm 13-425
Bellco GlassDesigned for standard screw thread vials. Available with or without septa. Easy on and easy off convenience with a twist of the cap that produces an evaporation proof seal. Larger opening provides a increased target area for needle penetration. Specifications: Size: 13mm Color: Black …
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PTFE Cap Liners
J.G. FinneranSolid virgin PTFE liners can be manually inserted into closure and maintains a snug friction fit. PTFE liners are also available in other sizes and thicknesses.
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PTFE/Silicone Septa,9mm
Bellco GlassManufactured from red PTFE silicone. Ideal for screw thread vials. Specifications: Autoclavable Material: Ptfe Silicone Size: 9mm Septa Thickness: 0.040" Case Quantity: 1000
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Large Volume Stainless Steel Capsule Kit
PerkinElmerThis kit includes Quick Press (P/N 09908467), Quick Press Spacer Die (P/N 03191047), 1 Pair Guard Ring Inserts (P/N 03190236), and 20 Pans, Covers and O-Rings (P/N 03190218).
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Take less time to wipe down then equivalent single tip-cap packages Minimize touch-contamination risk and protect the contents of the syringe during transportation Allow for multiple syringes to be capped during batch preparation Feature latex free caps
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13-425 Caps with Pre-inserted Septa
National ScientificPre-assembled caps and septa are convenient and minimize contamination from handling SepCaps are single piece all polypropylene caps with an integrally molded septum Phenolic resin caps perform well at high temperatures and exposure to corrosives Phenolic and urea storage caps are suitable…
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Ready assembled magnetic screw closures, N 18
MACHEREY-NAGELMore convenient, consistent, and safer sealing process compared to crimping (better reproducibility) No risk of inaccurate or inconsistent crimping results 1.5 mm thick septa are easier to penetrate than crimp closures N 20 with 3 mm thick septa generating less particles during sample pick up…
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KleenGuard™ A10 Light Duty Particle Protection Bouffant Caps
Kimberly-Clark ProfessionalKleenGuard™ Personal Protective Equipment (PPE) enables rather than inhibits – allowing for maximum productivity and safety for you and your employees. KleenGuard™ A10 Light Duty Bouffant Caps are a terrific choice when you need to provide economical, disposable protection for…
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NMR Tube Pressure Caps
DWK Life Sciences (Kimble)A tight-fitting, polyethylene cap which stays in place even with a build-up of internal vaporization pressures.
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Red PTFE/Silicone Septa,8mm
Bellco GlassManufactured from red PTFE silicone. Ideal for screw thread vials. Specifications: Autoclavable Size: 8-13mm Case Quantity: 1000
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Red PBT Cap with Liner 45mm for High Temperatures, Autoclavable to 200 degrees C
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Caps, SVL, Solid
Ace GlassSolid black replacement caps with SVL thread for rotary evaporator components. Available with and without vent plug.
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Tube Closures
SamcoThermo Scientific* Samco Tube Closures are available as flanged caps, two-position snap caps and universal caps. Our processes are monitored with quality checks which provide continued lot-to-lot uniformity and reliable performance.
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Epic Cleanroom Pleated Bouffant Cap
Tians InternationalLatex free, low lint full coverage cleanroom bouffant style cap. 100% machine made cap expands from 1 x 7 in packed size and opens up to a full sized cap. With our exclusive production method, this item is never touched by human hands and the bioburden is nearly eliminated. Machine welded seam…
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Available in multiple colors and package sizes.
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BrandTech® Sealing Ring
BrandTech®The BrandTech sealing ring is compatible to use with dispensette valve blocks. The strong PTFE construction offers good durability and endures rigorous usage.
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Cap Only 410-18
CorningThese standard 18-410 G.P.I. thread screw caps are replacement caps for the No. 5650 PYREX® volumetric flasks. Caps have a durable cone-shaped polyethylene liner Poly-seal cap insures a leak-resistant closure and no contamination when working with most common reagents
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Caps are designed to fit all different sizes of transport vials. All transport vials are 95kPa compliant. Available in a wide variety of colors. These caps can also be used on our 15 mL threaded centrifuge tubes.
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Foam Plug
ChemglassFOAM PLUGS FOR TEST TUBES AND LABORATORY FLASKS, INDENTI-PLUGS, Economical Open-cell, 1.45 lb. uniform-density foam Breathable and non-absorbent Use over a wide temperature range Autoclavable Chemical resistant Proven safe for algae culturing Identi-Plugs® are…