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  • Screw Caps for Microtubes

    Globe Scientific

  • Polyethylene Stopper Caps

    Evergreen Scientific

    Polyethylene stopper caps to fit a variety of general purpose test tubes

  • Polypropylene Open-Top Screw Caps

    DWK Life Sciences (Wheaton)

    Bonded Teflon®-Faced Silicone Liners White autoclavable open-top caps have a bonded Teflon-Faced Silicone Liner making them ideal for storage and retrieval of volatile solvents, sensitive compounds and corrosive chemicals. The liners consist of 0.055” of Silicone and 0.005” of…

  • Foam Plug


    FOAM PLUGS FOR TEST TUBES AND LABORATORY FLASKS, INDENTI-PLUGS, Economical Open-cell, 1.45 lb. uniform-density foam Breathable and non-absorbent Use over a wide temperature range Autoclavable Chemical resistant Proven safe for algae culturing Identi-Plugs® are…

  • Bonded septa in the closure provides extra resealability.

  • 20mm Snap On Stoppers

    J.G. Finneran

  • safePort™ High Profile O-ring Caps fit safePort™ 0.5, 1.5, and 2.0ml screw cap vials. Screw caps deliver leak-proof seal for all types of contents, ideal for life science reagent or solution. Caps and vials sold and packaged separately allow for customization on coloring and sizes…

  • High Grip Plug Caps

    Globe Scientific

    These polyethylene (PE) plug caps are designed in 11mm, 12mm, 16mm and 17mm sizes and are available in a selection of colors for sample identification.

  • White Polypropylene Cap With Teflon Liner

    DWK Life Sciences (Wheaton)

    Ideal for high purity chemicals, strong acids, solvents Excellent for environmental samples, pharmaceuticals and diagnostic reagents Teflon-faced foamed polyethylene liner offers the excellent chemical resistance of Teflon with the compressibility and sealing properties of polyethylene foam.

  • 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…

  • Screw closures/caps, N 10


    Bonded and ready assembled open top black screw closures 10-425 and plain caps with no liner Closures available with a broad variety of septa materials Red Rubber / FEP septum for routine analyses; for more demanding analyses: high purity silicone / PTFE septa Slit silicone/PTFE septa as a…

  • Universal Fit Plug Caps

    Globe Scientific

    Universal plug stopper fits most 10mm, 12mm, 13mm & 16mm tubes. Produced from polyethylene (PE), the caps are available in 7 different colors.

  • 24-400 CAP, PP WHT, F217 FMD PE LNR

    DWK Life Sciences (Wheaton)

  • Made of polyethylene An economical way to recap blood drawing tubes, disposable glass test tubes and plastic culture tubes. Flexible VACUCAP™ closures protect from aerosols of highly infectious microorganisms. They guard samples against cross-contamination and laboratory work areas…

  • Foam Plugs

    Azer Scientific

    Our autoclavable Foam Plugs fit both wide and narrow vials, as well as our drosophila bottles. Available in our signature Azer blue.

  • White polypropylene closure, F217 Lined

  • Cap w / Strap 53mm F / Jerricans

    Thermo Scientific Nalgene

    Jerrican Cap with Strap 53mm screw thread

  • GL 45 screw cap with either two or three ports that have GL 14 thread. This is a flexible modular system which has four different hose diameters available: 1.6 mm, 3.0 mm, 3.2 mm and 6.0 mm that can be connected.Sterile pressure equalization is possible through use of membrane filter. Legal…

  • Easy-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.

  • Pre-assembled caps and septa are convenient and minimize contamination from handling SepCaps are single piece all polypropylene caps with an integrally molded septum Phenolic resin caps perform well at high temperatures and exposure to corrosives Phenolic and urea storage caps are suitable…

  • Foxx Life Sciences PUREGRIP® HPLC Solvent Reservoir Caps and Bottle system offer the safest and most ergonomic lab safety solution in the industry. This system come with VersaCap®, a Class VI PTFE Manifold, chemically resistant Viton O-Ring & Air Inlet Valve combined with a Foxx 25mm,…

  • 20 mL Amber Vial

    J.G. Finneran

  • 16mm Plug Caps

    Globe Scientific

    Fits most 16mm tubes Polyethylene (PE) Assorted colors available

  • PolyCone 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…

  • Automated 96-Channel Capper/Decapper Fully-automated 96 channel premium capper/decapper Process a full rack of tubes Caps can be held or placed on a cap rack Can be operated as an integrated and standalone device Touchscreen panel provides easy navigation through the system …

  • Replacement caps for 1 and 2 dram vials.

  • 20-400 CAP, PP BLK, OPN, UNLINED

    DWK Life Sciences (Wheaton)

  • Plug Caps

    Globe Scientific

    These polyethylene (PE) plug caps are designed in 11mm, 12mm, 16mm and 17mm sizes and are available in a selection of colors for sample identification.

  • Transfer Caps

    NEST Scientific USA

    Multi-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…

  • Aluminum Seal, Tear Off

    DWK Life Sciences (Kimble)

    One piece tear-off style aluminum seal Allows for easy access to vials Fits aluminum seal finish: 13 Color: Natural 1000 seals per case

  • These 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…

  • Cap 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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