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  • PTFE Liners

    J.G. Finneran

  • 20-400 CAP, PP YLW, OPN, UNLINED

    DWK Life Sciences (Wheaton)

  • Universal Snap Caps

    Globe Scientific

    Fits most 12mm, 13mm and 16mm plastic test tubes. Polyethylene Assorted colors available.

  • PUREGRIP® HPLC Solvent GL45 Cap Assemblies

    Foxx Life Sciences

    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,…

  • 12mm Flanged Plug Caps

    Globe Scientific

    Fits most brands of 12mm tubes Polyethylene (PE) Available in sorted colors

  • 16mm Snap Cap for Tubes

    Globe Scientific

    Fits most 16mm glass tubes Fits most 16mm glass evacuated blood collection tubes Thumb tab for easy removal Polyethylene (LDPE) 1000 caps per sealed bag Assorted colors available These colorful snap on closures are an effective way to recap 16mm blood drawing tubes and glass test…

  • Black Phenolic Screw Caps

    DWK Life Sciences (Wheaton)

    These autoclavable caps are designed to ensure the ultimate in product safety. The liners are white styrene-butadiene faced with Teflon.

  • VersaCap Adapter Insert

    Foxx Life Sciences

    The 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…

  • PYREX® Polyethylene Snap Caps


    These blue PYREX® polyethylene caps provide an economical closure for some volumetric flasks (See Nos. 5580, 5581 and 5600).

  • Unlined White Polypropylene Caps


    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.

  • Solid Top Closures, Unlined

    J.G. Finneran

    White polypropylene closure, Unlined

  • 13mm Flanged Plug Cap

    Globe Scientific

    Plug cap, flanged. Fits most 13mm tubes Polyethylene (PE) Assorted colors available

  • 13-425 Caps with Pre-inserted Septa

    National Scientific

    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…

  • Caps for Sample Cups

    Globe Scientific

    These caps are designed specifically for use on our popular line of multi-purpose sample cups and are produced from polyethylene (PE). The caps are available with a solid or cross-cut pierceable top and they snap securely in place on each of the sample cups.

  • Black Phenolic Caps

    DWK Life Sciences (Kimble)

    Screw threads Choice of six liners

  • Flip Off Button Seals

    J.G. Finneran

  • 13-425 Dropper Tip Caps

    DWK Life Sciences (Wheaton)

    Screw cap made of radiation grade polypropylene Variety of colors Packaged in case of 100 or 1000

  • Caps, Bottle, GL-45 or GPI-38


    An inexpensive bottle cap for either GL-45 or GPI-38 threads that permits standard solvent or media bottles to be used as an HPLC reservoir. Caps have two holes to accomodate 1/8" tubing and one hole that accepts a standard luer inner joint. Caps are made from polypropylene and the inserts are…

  • Precision Rubber Septa Caps

    Wilmad-LabGlass - SP Scienceware

    Engineered 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…

  • Screw Caps for Sample Tubes

    Globe Scientific

    For use with Globe Scientific's 6030 to 6059 sample tubes with external threads.

  • Flask Caps

    Celltreat Scientific

    Solid or vent replacement caps for tissue culture and suspension culture flasks, packaged sterile (gamma irradiated) Vent caps feature 0.22um hydrophobic membrane for gas exchange Manufactured from medical grade virgin polyethylene (HDPE)

  • GL 45 Connection System

    DWK Life Sciences (Duran)

    Flexible modular system. Four different hose diameters (1.6 mm; 3.0 mm; 3.2 mm and 6.0 mm) can be connected. Sterile pressure equalization is possible through use of membrane filter. Unused ports can be provided with a blind cap.

  • Membrane Cap, Blue Polypropylene

    Bellco Glass

    PTFE sealed-in gas permeable membrane. Reduces risk of excess internal pressure. Can be tightened during autoclaving.

  • Screw Thread Caps & Septa


    MicroLiter offers products for both LC and GC applications.

  • White Polypropylene Screw Caps

    DWK Life Sciences (Wheaton)

    Bonded Teflon®-faced silicone liners White, autoclavable caps have a bonded Teflon-Faced Silicone Liner making them suitable for storage and containment of volatile solvents, sensitive compounds and corrosive chemicals.  The liners consist of 0.055” of Silicone and 0.005”…

  • Screw Caps with O-Rings for Sample Tubes

    Globe Scientific

    For use with Globe Scientific's 6030 to 6059 sample tubes with external threads.

  • Black Polypropylene Linerless Glass Dropper Assembly


    Dropper Assemblies feature a glass tube with black polypropylene closure and rubber squeeze bulb. Tip opening has a 3.0mm outside diameter.

  • PTFE Bonded Black Screw Cap

    Bellco Glass

    Deep skirted PTFE lined screw cap. Autoclavable, black mineral-filled phenolic resin WPTFE liner is permanently bonded to cap Deep skirt reduces risk of contamination

  • Manual Push Cap Sealer

    LVL technologies

    Manual 96 channel sealer for push caps (for internal and external threaded tubes) One process seals a complete SBS rack with push caps Variable rack heights available

  • 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.

  • Pre-Flared Spec-Caps®

    SPEX SamplePrep

    Pre-flared, shallow, thin-walled aluminum cap for reinforcing XRF pellets. Commonly used in the production of pressed power sample disks for XRF but also used for OES and other analytical techniques. Forms the bottom and sides of the finished pellet. 31 mm wide x 8 mm deep. Produces pellets 31 mm x…

  • PTFE Cap Liners

    J.G. Finneran

    Solid 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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