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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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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EZWaste® HPLC Caps
Foxx Life SciencesFoxx Life Sciences’ EZWaste® HPLC Caps are designed to be an affordable solution for liquid waste disposal. Each system is manufactured to combine with any 38-430, GL45, 51S, 53, S70 or 83B threaded container and safely collect waste from one or more HPLC systems. These assemblies feature…
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PP SturdeeSeal® PE Foam Lined Caps are known for good impact strength, cost effectiveness, and pliability. These polypropylene closures with foamed polyethylene liners have excellent sealing characteristics and offer good chemical resistance including acids, alcohols, alkalis, aqueous products,…
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Ready assembled screw closures, N 9
MACHEREY-NAGELBroad variety of closures and caps in different colors Closed top closures with different septa materials for sample storage 9 mm screw cap suitable for almost all autosamplers due to its design in form of a crimp cap Thread design not standardized; avoid mixture of vials and caps from…
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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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Solid Cap, PTFE Seal, GL-14 Thread
ChemglassCap is made from PBT (thermoplastic polyester) and will withstand temperatures from -45 to 200°C. PTFE seal is also available separately.
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PolyCone Lined Phenolic Caps
QorpakPolyCone Lined Phenolic Caps form an exceptionally tight seal and offer a good chemical barrier. This liner molds itself around the sealing areas of the finish as the cap is screwed on, virtually eliminating leakage, evaporation, contamination, binding and backing off. Great for everything from…
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Serum Sample Cup Caps
Caplugs Evergreen®Polyethylene caps are designed to fit all types of round, conical and standard bottom serum cups. Available in flat top and perforated top. Non-perforated caps are appropriate for short-term storage and perforated caps help minimize variation caused by evaporation during…
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Caps, GL Thread - Duran®
Ace GlassScrew caps and pouring rings for use with GL threaded bottles. For steam autoclaving, we recommend PBT (polybutylene theraphthalate) caps with a PTFE liner, -45 to 180 degrees C rated. Polypropylene is only rated to 140 degrees C. 316L stainless steel cap is for use with stainless steel laboratory…
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Orange Caps for FastPrep® Tubes
MP BiomedicalsOrange 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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Meets FFDCA Requirements for Food Contact 100% polyester mesh Available in 18 ,21 ,24, and 27 inch sizes
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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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EZwaste®
Foxx Life SciencesEZwaste® Safety Vent VersaCap® 83mm, Ports, Tubing and a Chemical Exhaust Filter. Foxx Life Sciences™ EZwaste® Solvent Waste System is designed to be an affordable solution for liquid waste disposal. Each system is manufactured to safely collect waste from one or more HPLC systems while the carbon…
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Transfer Caps
NEST Scientific USAMulti-function Transfer Cap Unlike the bi-directional liquid transfer cap, the multi-function transfer cap can be directly placed in an incubator for culture after the liquid transfer is completed. It can reach a large air flux. The sampling part is composed of a sampling nozzle and a one-way…
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Nalgene™ Colored Polypropylene Closures: Bulk Pack
Thermo Scientific NalgeneEliminate spills with Thermo Scientific™ Nalgene™ Colored Polypropylene Closures. These one-piece, linerless closures fit Nalgene™ narrow-mouth 4mL bottles. They feature an integrally molded seal ring and a well-defined closure knurl that makes gripping and capping easy.
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Thermoset Urea closures
QorpakThermoset Urea closures are known for providing the widest range of chemical compatibility and for being the most temperature tolerant of plastic closures. Thermosetting plastics (thermosets) such as urea resins are polymers that irreversibly cure; thus urea caps and closures cannot be remelted…
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Dropper Assemblies
QorpakDropper Assemblies feature a glass tube with black polypropylene closure and rubber squeeze bulb. The opening of tube tip has a 3.0mm outside diameter. These dropper caps are available in multiple sizes with dropper tubes in multiple lengths.
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9mm, R.A.M.™ Polypropylene Open-Hole Caps
J.G. FinneranEasy-on, easy off convenience with a twist of the cap that produces an evaporation-proof seal. Larger opening provides increased target area for needle penetration. Available in a variety of colors for easy sample identification. Choose a septa best suited for your application.
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White 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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Vented Caps
ChemglassBlue polypropylene vented cap has a 0.22µm PTFE hydrophobic membrane to allow gas exchange while preventing contamination. They are autoclavable at 121°C. Must be used with our 70mm silicone gasket
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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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Caps and Septa for Screw Thread Vials
Agilent Technologies4 mL capacity vials Line of 13 x 425 mm caps with septa are for use with sample vials and as diffusion caps for wash vials. Caps also allow use as storage vials. Agilent Technologies products are intended for sale/shipment within the US only. International customers should contact…
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Biodegradable Plastic Cylinder Mold Lids
Gilson Co. Inc.Biodegradable Plastic Cylinder Mold Lids are purchased separately to fit Gilson Biodegradable Plastic Cylinder Molds. Slight dome shape with internal ridge snaps tightly over lip of molds. Use of tight-fitting lids assures positive moisture retention.
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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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Silicone Sponge Closure, 28mm
Bellco GlassFor use with 18mm screw necks, 13-18mm Culture Tubes, 18-25mm Culture Tubes, 38mm Culture Tubes, 25-50ml Erlenmeyer Flasks, 125-300ml Erlenmeyer Flasks, 500-1000ml Erlenmeyer Flasks, 25-125ml DeLong Flasks and 250-6000ml DeLong Flasks. Sealed-in Silic
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CT™ Caps
Globe ScientificGlobe Scientific CT™ flange plug caps have extremely high tolerances and are specifically designed for use with CapTrack™. These caps provide superior leak resistance in all tubes processed by CapTrack™ which allows for the utmost confidence in sample integrity during…
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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