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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Precision Rubber Septa Caps
SP Wilmad-LabGlassEngineered 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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Blue Screw Cap & Septa
Agilent TechnologiesThe Agilent Technologies 2 mL blue screw cap is made from strong polypropylene material and comes with a bi-layer PTFE/silicone septa that ensures a water-tight and airtight seal. This product is only available to U.S. Domestic Customers. For research use only, not to be used in diagnostic procedures.
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Cap assembly for small biorecator with various fitting arrangements.
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9mm Certified Bonded Closures
ChemglassCertified Bonded 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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Test Tube Stopper Caps
Caplugs Evergreen®Polyethylene test tube stopper caps are precision-molded and available in either our standard or flat-top style. Stopper caps are available for every size of Caplugs Evergreen test tube from 8 mm to 17 mm. Standard version is available in a wide variety of colors and flat-top…
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Critical Cover® GenPro® Bouffant Caps
AlphaProTechSecure, Comfortable Fit Comfortable Fit Lightweight yet durable Latex free GenPro is an ideal solution for dry non-hazardous environments.
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Stainless Steel Closures for Tubes of 25mm 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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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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Culture Tubes, KIM-KAP®, Polypropylene Closures, Autoclavable, Color Coded
DWK Life Sciences (Kimble)Color Coded - natural, red, green, yellow and blue
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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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AlteCap™ Switch, Semi-Automated Decapper
AltemisLabAlteCap™ Switch Semi-Automated Screw Cap Handling The only decapper capable of switching between 6, 8 and 12 formats. Quickly cap, decap or recap tubes by column or row. Featuring interchangeable cap driver cassettes for easy processing of different screw cap tube types and tubes…
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PTFE Faced Silicone Septa 32mm
Bellco GlassOpen top caps are ideal for applications requiring addition/withdrawal of vessel contents. Autoclavable to 140ºC.
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Acid Caps
QorpakAcid Caps are polypropylene caps that are acid resistant. This F422 liner is comprised of a .38" LDPE core sandwiched between identical layers of .002" - .003" virgin HDPE.
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Standard Tin Capsule Kit
PerkinElmerAs it burns, tin releases heat, causing the sample to break down more quickly and more completely. Tin capsules are routinely used to analyze polymers, soils, coal, dry dairy products, plant leaves, paper, textiles, calibration standards, and many organic and pharmaceutical products. To use, simply…
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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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Premium Pouring Ring, 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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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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Solid Top Polypropylene Caps, SURE-LINK™
ChemglassThese caps, made of polypropylene, are ideal for use with volatile solvents, sensitive compounds, and biological media. The SURE-LINK process welds each cap with a Polypropylene/PTFE/Silicone liner bonded to the cap. This process allows the cap to maintain seal through multiple autoclaving…
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ZapCap® bottle-top filters ZapCap-CR
MilliporeSigmaZapCap® CR Bottle Top FiltersZapCap®For filtration of medium volumes, cell culture media and HPLC solutions.Features and benefits: •Complete 500 ml units with tubing nozzle; for attaching to bottles (bottle-top) •Connection seals on any standard bottles 33 to 45 mm …
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MicroLiter 20mm crimp top seals are available in multiple colors and septa types.
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PPCO High Profile Closures with Color Coders for Micro Packaging Vials
Thermo Scientific NalgeneReduce risk of contaminating contents with Thermo Scientific™ Nalgene™ PPCO High Profile Closures with Color Coders for Micro Packaging Vials. Polypropylene copolymer closures have no O-ring to fall out or contaminate contents and are offered with a variety of color coders. …
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Cleanroom Bouffant Caps, Polypropylene, 21"
XtraClean® (a Thomas Scientific Brand)Made of 100% virgin polypropylene fabric with a latex-free elastic band. Weighs approximately 10 grams and packaged in a Class 100 compatible environment. Packed in sealed polyethylene bags and a separate inner-case poly-bag liner Measures 21 inches in diameter. Available in Blue or White.
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Packo Jar
QorpakFor pharmaceuticals, specialty chemicals and food ingredients, this jar lid protects your valuable products from moisture, from contamination, and against tampering, ensuring your hazardous solids arrive safely at their destination. The quarter-turn screw lid closure reduces handling time.
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