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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PTFE Faced Silicone Septa 45mm
Bellco GlassOpen top caps are ideal for applications requiring addition/withdrawal of vessel contents. Autoclavable to 140ºC.
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Ready assembled snap ring closures, N 11
MACHEREY-NAGELBroad variety of closures in different colors Hard PE caps for better sealing; soft, light blue PE caps for more convenient handling (easy push on and removal of caps) Septa material used for the production of the snap ring closures has – aside from physical inspection – also been…
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Polypropylene Screw Closures
Thermo Scientific NalgeneLinerless closures are for use only with NALGENE narrow- and wide-mouth bottles and Erlenmeyer flasks Autoclavable Available in natural and amber
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MicroLiter 20mm crimp top seals are available in multiple colors and septa types.
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KleenGuard™ A20 Breathable Particle Protection Bouffant Caps (66829), Cleanroom…
Kimberly-Clark ProfessionalKleenGuard™ Personal Protective Equipment (PPE) enables rather than inhibits – allowing for maximum productivity and safety for you and your employees. KleenGuard™ A20 Breathable Particle Protection Bouffant Caps are designed to move with you – and your employees –…
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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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Preassembled 9mm Thread Caps
ChemglassPre-assembled closure and septa minimize contamination from handling. They are convenient and available in a variety of colors with your choice of septa.
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Snap Caps for Flared Top Urine Tubes
Globe ScientificThese snap caps are designed specifically for use on flared-top urine centrifuge tubes. The cap snaps snugly onto Globe Scientific urine centrifuge tubes (Thomas Nos. 1202L37, 1202L35 and 1202L42) and provides a great leak-resistant seal.
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Long skirted screw caps with rubber liners. Autoclavable, black mineral-filled phenolic resin White rubber liners sealed into cap 14B white rubber (FDA classification) Deep skirt reduces risk of contaminatio
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Color-Coded Insert
SarstedtThe Sarstedt color-coded insert is made from polypropylene material that makes it strong for a long time. Color-coded design facilitates easy identification in dark areas.
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Membrane Cap, Blue Polypropylene
Bellco GlassPTFE sealed-in gas permeable membrane. Reduces risk of excess internal pressure. Can be tightened during autoclaving.
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Sealing Caps Oak Ridge™ PP / Silicone 63 mm
Thermo Scientific NalgeneThermo Scientific™ Nalgene Sealing Cap Assemblies ensure leakproof service of Nalgene centrifuge bottles at their recommended maximum rated speeds. They are also recommended for use when spinning hazardous materials.
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20mm Crimp Seals without Septa
National ScientificQuick, convenient, and minimize contamination 20mm Crimp seals with prefitted septa for headspace vials Seals with pre-inserted septa are convenient and minimize contamination due to handling Use magnetic seals with CTC/Leap* Technologies, Gerstel* and other magnetic transport autosamplers…
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8mm Aluminum Crimp Seals
National ScientificSecure leak-resistant seal Aluminum seals must be applied with a crimping tool
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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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Phenolic Pulp/Vinyl Lined Caps are perfect for general use. The liner is made of a vinyl coating applied to high density polyethylene coated paper and then it is laminated to pulpboard. This general purpose liner is commonly used for food, beverage, medical and chemical applications packed at less…
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GL Closures & Accessories
DWK Life Sciences (Duran)Premium pour caps & ring Compound formulated without colour dye to avoid risk of leaching. Service temperature limit from –196°C to +200°C. Very high chemical resistance. High leak tightness through use of PTFE coated silicone seal. A matching TpCh260 pouring ring is also…
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Flat Top Colored Closures
SimportSix styles of caps to choose from and two sealing types: O-ring seal and lip seal The cap is molded with a deep internal lip that fits snugly against the interior wall of the tube thus preventing the contents from coming in contact with the seal or threads, thereby reducing the chances of…
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Bouffant Cap
International EnviroGuardThis 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 dirt,…
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Polypropylene Bouffant Caps
Keystone SafetyLightweight Polypropylene Bouffant Cap - 100% Latex Free.
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16mm Snap Caps
Globe ScientificThese colorful snap-on closures are an effective way to recap blood drawing tubes, glass test tubes and plastic culture tubes. They are precision molded from low-density polyethylene (LDPE) and maintain a tight seal during centrifugation, agitation and refrigeration procedures. They are available…
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Ready assembled crimp closures/caps, N 8
MACHEREY-NAGELReady assembled crimp closures N 8 Available with a broad variety of septa materials, most of them - aside from physical inspection - being tested analytically as well prior to assembly. Three-layer septum natural rubber / butyl / TEF or two-layer septum Red Rubber / FEP for routine analyses;…
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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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Blue Caps for FastPrep® Tubes
MP BiomedicalsBlue Caps fit empty 2mL FastPrep Tubes and are used in Fastprep systems to hold sample for Homogenization. Available separately for those who wish to fill their own Lysing Matrix Tubes. Colored screw cap with o-ring.
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Preassembled GPI 10-425 Septa Caps
ChemglassPre-assembled closure and septa minimize contamination from handling.
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