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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Bouffant Cap
CellucapBouffant caps should be used in full containment situations where it is necessary to prevent minute particles from reaching products or equipment. We recommend these for direct food contact or when more protection than a hairnet is needed. All of our polypropylene bouffant caps are made with latex…
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Empty Rack
LVL technologiesThe LVL Technologies empty rack is made of high-quality polypropylene material.
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Stainless Steel Closures for Tubes of 20mm OD
Bellco GlassExcellent for Culture Tube and Flask Closures. 305 Stainless Steel, Non-Corroding. Lanced fingers grip firmly after repeated autoclaving.
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MicroLiter 20mm crimp top seals are available in multiple colors and septa types.
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Pre-assembled closure and septa minimize contamination from handling.
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Finneran Open Hole Cap
J.G. FinneranThe Finneran 9 mm ribbed open hole cap is used with threaded vials to ensure tight sealing of the stored sample. It is mainly used in research laboratories or in chemical industries. This cap is made of sturdy polypropylene material which ensures long lasting usage and durability.
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Spec-Caps®
SPEX SamplePrepShallow, thin-walled aluminum cap for reinforcing XRF pellets. Commonly used in the production of pressed power sample disks for XRF but also used for OES and other analytical techniques. Forms the bottom and sides of the finished pellet. Features Makes sample disks easier to remove from…
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These reusable Corning® caps are fabricated specially formulated resin to resist the effects of temperature and steam in autoclaving. Caps have GPI 24-400 threads and are provided with a glued-in rubber liner over which is firmly bonded a Polytetrafluorethylene (PTFE) interface to provide a…
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BioClean™ Bouffant Caps
AnsellThe BioClean™ Bouffant Cap provides ventilation and protection. It's lightweight, soft non-woven material is hypoallergenic and breathable. Featuring latex-free elastic and double stitched opening, the bouffant cap is compatible with a variety of environments.
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Nalgene™ PPCO Low-Profile Closures for Micro Packaging Vials: Nonsterile, Bulk…
Thermo Scientific NalgeneQuickly identify samples using Thermo Scientific™ Nalgene™ PPCO Low-Profile Micro Packaging Vial Closures, offered in a variety of colors. Closures are molded of high-purity, low metal-content polypropylene copolymer resin—excellent for PCR reagents. Features: Vials…
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Finneran Cap Liner
J.G. FinneranThe Finneran 24 mm cap liner ensures tight sealing of the stored sample. It is mainly used in research laboratories or in chemical industries. This liner is made of sturdy PTFE material which ensures long lasting usage and durability.
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Made of polypropylene Caps are available either with or without a silicone washer between the cap and the tube to ensure a positive leakproof seal at all temperatures. Closures and tubes are both manufactured of polypropylene, providing the same coefficient of expansion. The cap features a…
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Open top caps are ideal for applications requiring addition/withdrawal of vessel contents. Autoclavable to 140ºC.
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Headspace Caps and Septa
Agilent TechnologiesAgilent Headspace caps and septa are available in screw or crimp top. Agilent Technologies products are intended for sale/shipment within the US only. International customers should contact their local Agilent Technologies distributor to place orders for Agilent Technologies products.
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Red PTFE/Silicone Septa,10mm
Bellco GlassManufactured from red PTFE silicone. Ideal for screw thread vials. Specifications: Autoclavable Material: Ptfe Silicone Size: 10mm Septa Thickness: 0.060" Case Quantity: 1000
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The Corning® orange polypropylene caps are autoclavable at 121°C, have a GLS80 thread and use a linerless plug seal design for efficient sealing. Cap Style: Plug Seal Cap Material: Polypropylene Cap Color: Orange Thread Finish: 80 GL Feature: Reusable Sterile: No
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LDPE (low density polyethylene) plastic Yorker Caps come with replaceable LDPE Red Sealing Tips to keep bottle contents inside when not in use. These Yorker Caps w/ Red Tips are ideal for dispensing small amounts of liquid or gels such as condiments, syrups, glues, and more from squeezable and…
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MicroLiter 20mm crimp top seals are available in multiple colors and septa types.
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BiMetal Seals, Magnetic
J.G. FinneranThe BiMetal Seal is comprised of tin and aluminum materials. The outer surface (red or blue) is aluminum and the inner diameter is a silver tin.
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Premium Cap, High Temperature, Clear, GL-45
Bellco GlassManufactured from TPCh260 without colorants or pigments. Silicone liner has double faced PTFE for highest chemical resistance. Temperature range: -196C to +260C.
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Preassembled GPI 13-425 Septa Caps
ChemglassPre-assembled closure and septa minimize contamination from handling.
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Screw cap for 5.0 ml MacrewTube™ Microcentrifuge tubes. Polypropylene. RNase, DNase, Pyrogen and DNA free. Autoclavable. Temp range +121 °C to -196 °C.
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Open Top Screw Cap Only,15mm
Bellco GlassOpen Top Screw Cap Only 15mm Specifications: Size:15mm Material: Black Phenolic Thread Finish: 15-425 Packed 250 Per Case
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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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28-400 Cap, Phen Blk, Poly-Seal Liner
DWK Life Sciences (Wheaton)Black phenolic screw cap Poly-Seal liner is manufactured from low density polyethylene Unique cone liner design offers superior torque retention and excellent sealing characteristics It is recommended that liner be tested prior to use for leak resistant applications
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Blue S/Cap W/PTFE/Sil,10mm 10-425
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: 10mm Color: Blue …
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TH Cap w/PTFE Silicone Liner 8-425mm
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: 8mm Color: Blue …