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. 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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Screw Caps for use with SuperClear® microcentrifuge tubes SuperClear® Screw Cap Microcentrifuge Tubes include caps with molded-in elastomeric seal or ethylene propylene o-rings and are ideal for any sample processing application. Excellent for frozen storage or when working with…
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White Unlined Polypropylene Caps are known for good impact strength, cost effectiveness, and pliability. Unlined polypropylene closures are also available in black. These caps are autoclavable and are suitable for many dry products.
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8-425 Screw Thread Caps with Inserted Septa
National Scientific8-425 Screw Thread Caps with Inserted Septa Pre-assembled caps and septa are convenient and minimize contamination from handling Phenolic caps can be autoclaved Kim-Lok™ cap/septum assemblies feature a molded centering ring to eliminate septum movement during injection …
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Colored Screw Caps for Micro Tubes
SarstedtColored screw caps for micro tubes Types A - I; for custom coding.
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Black Unlined Polypropylene Caps are known for good impact strength, cost effectiveness, and pliability. Unlined polypropylene closures are also available in white. These caps are autoclavable and are suitable for many dry products.
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NBC Series Polypropylene Bouffant Caps
CT InternationalCTI’s NBC Series Spunbonded Polypropylene Bouffant Caps are manufactured with the same outstanding quality as all of our other Scientific Division products. They are strong and durable, but made from a lightweight material that offers breathability and comfort. All items are individually…
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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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NMR Tube Caps
ChemglassMade from polyethylene, these caps are sized to fit 5mm O.D. NMR sample tubes. Cap fits tightly to stay in place during increased internal vaporization pressure. Available in a pack of 100, or in a convenient divided polypropylene box having 100 each of the 6 listed colors.
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GLS 80 Connection System
DWK Life Sciences (Duran)With easy-to-read scale and large labeling field for easy marking in fired-on, highly durable ceramic ink. Complete system including DURAN® Pressure plus laboratory bottle with 4-port screw cap (PP) , four screw connectors (black, M* thread) and silicone seals . Connection of different hose…
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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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Green Thermoset F217 & PTFE Lined Caps are known for providing the widest range of chemical compatibility and for being the most temperature tolerant of plastic closures. The color green easily identifies the PTFE liner system. Foam backed PTFE liners resist attack from virtually all chemicals…
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High Density Polyethylene Screw Closures
Thermo Scientific NalgeneFor radiation-sterilization applications Use with NALGENE bottles Not autoclavable
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10-425 Bonded Closures
ChemglassBonded closures feature clear PTFE/Silicone bonded directly to the closure without the use of glue or adhesives. These bonded closures provide a cost effective, integrated, one-piece system that eliminates costly line fallout. Closures are available in both pre-slit and non-slit designs
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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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Sealing Cap
Thermo Scientific NalgeneAutoclavable Two-part assembly For attachment to centrifuge tubes or bottles to prevent leakage during extremely high speed centrifugation. Two-part assembly consists of polypropylene screw closure and a retained silicone gasket. Caps can be written on for easy notation.
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Bouffant Cap
XtraClean® (a Thomas Scientific Brand)XtraClean™ disposable full coverage bouffant caps are made of lightweight and breathable fabric. Trimmed with a latex free elastic band for a comfortable snug fit. 100% virgin non-linting spunbonded polypropylene. Individually inspected for sizing, stitching and workmanship. Available in…
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Ready assembled crimp closures/caps, N 13
MACHEREY-NAGELReady assembled crimp closures N 13 and plain caps with no liner Center tear off cap for tamper-evident sealing of a sample vial Molded Butyl/PTFE septa with only centrically laminated PTFE for excellent sealing on the glass rims To be crimped with MACHEREY-NAGEL manual / electronic…
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MicroLiter's 11mm AlumiTin crimp-top autosampler vial seals are available in multiple colors and septa types.
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VersaCap Adapter Insert
Foxx Life SciencesThe 50mm closed adapter is designed to be used with the 50mm open VersaCap. It enables the user to change the top connections creating a closed system. The adapter is molded from USP Class VI, FDA Grade material, and is autoclavable. The adapter is designed to be leakproof and comes with a…
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20-410 Dropper Tip Caps
DWK Life Sciences (Wheaton)Screw cap made of radiation grade polypropylene Variety of colors Packaged in case of 100 or 1000
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SAV-IT™ Closures
Thermo ScientificPliable closures for use with evacuated blood collection tubes and glass and plastic test tubes. They protect from contamination and prevent evaporation. Closure will not crack or pop off. Seals inside test tube or over tube rim. The 12mm and 13mm closures seal over the rim of either 12mm or…
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Black Phenolic Caps with Pulp/Aluminum Foil Liners are free of odor and taste problems, and are appropriate for non-acid, non-alkaline products. Typically used for food applications, these aluminum foil-lined plastic caps can also be used for such products as organic solvents, chrome cleaners,…
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Pre-Assembled 9mm Closures
labForce® (powered by Thomas Scientific)labForce® Brand pre-assembled closures and septa come ready to use. Designed to work in robotic arm autosamplers. Select the closure and liner combination for your sampling requirements.
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Two-Position Caps
Caplugs Evergreen®Overfitting caps for use with sterile culture tubes have two positions: loose for aerobic culturing and tight for anaerobic cultureing and leakproof sealing. Designed to fit specified tube material and size, listed in description. Available in non-sterile or sterile.
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Open top caps are ideal for applications requiring addition/withdrawal of vessel contents. Autoclavable to 140ºC.
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Red Caps for FastPrep® Tubes
MP BiomedicalsRed Caps fit EMPTY 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. Use with Empty FastPrep Tubes. Add sample to empty tube, add appropriate Lysing Matrix material and lysing…
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Aluminum Seals with PTFE-Faced Silicone Septa
DWK Life Sciences (Kimble)Medium durometer PTFE / silicone septum Allows for good resealability, core resistance, multiple injections and easy penetration