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  • Diamond Culture Tube Caps

    Globe Scientific

    These popular caps fit plain end culture tubes and flasks with DeLong style necks or ports. The caps are molded from durable, autoclavable polypropylene (PP). They are available in a full range of five sizes and five colors for easy sample identification and organization. Recommended tube diameter…

  • Screw Caps with O-Rings for Sample Tubes

    Globe Scientific

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

  • 10mm Snap Caps

    Globe Scientific

    These colorful snap-on closures are an effective way to recap blood drawing tubes, glass test tubes and plastic culture tubes. They are precision molded from low-density polyethylene (LDPE) and maintain a tight seal during centrifugation, agitation and refrigeration procedures. They are available…

  • Metal Threaded Closure (18mm)

    J.G. Finneran

    Magnetic Threaded Screw Caps are offered with a selection of liner materials.  For best results, it is very important the headspace vial and the closure form a tight seal.

  • 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.

  • Microlink® Screw Caps

    DWK Life Sciences (Wheaton)

    Ideal for use with biological media, volatile solvents, corrosive chemicals and sensitive compounds Liner is ultrasonically welded to the cap to eliminate the possibility of glue contamination and bond failure common with autoclaving Available in convenient Lab Pack quantities as well as…

  • PYREX® Polyethylene Snap Caps


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

  • Flip-spout Caps


    For use with immunoassay reagent products.

  • safePort™ O-ring Caps, Low Profile

    ACTGene, Inc.

    safePort™ Low 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…

  • Septa, Gray Silicone

    Ace Glass

    Septa, gray silicone, 3mm thick. Code -06 used with #7 Ace-Thred, code -10 used with #11 Ace-Thred. Supplied 12 per package.

  • 20mm Snap On Stoppers

    J.G. Finneran

  • 8-425 Screw Thread Caps with Inserted Septa

    National Scientific

    8-425 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 …

  • 12/13mm Santoprene Plug Caps

    Globe Scientific

    These pierceable caps are great for recapping vacuum blood tubes and test tubes. They are produced from santoprene (a rubberized material) and can easily be pierced with a syringe.

  • Black Phenolic Screw Caps

    DWK Life Sciences (Wheaton)

    Tefon®-faced (14B) rubber liners Autoclavable caps are designed to ensure the ultimate in product safety. The liners are made of a nontoxic white styrene-butadiene rubber and are faced with Teflon® which offers excellent chemical resistance. They are available in convenient lab pack quantities…

  • Black Phenolic Rubber Lined Caps


    Black Phenolic Rubber Lined Caps are autoclavable. The Liner is compliant with FDA 21 CFR 177.2600 Rubber Articles Intended for Repeated Use. The liner exhibit good resiliency and resistance to moisture vapor. The closures provide consistent adherence to close dimensional tolerance.

  • 12 mm Plug Caps

    Globe Scientific

    Polyethylene (PE) Fits Globe 12x75mm PS and PP tubes Available in assorted colors

  • Black Phenolic Cap With PE Poly-Seal Liner

    DWK Life Sciences (Wheaton)

    Stress crack resistant Superior torque retention Excellent sealing characteristics Manufactured from LDPE. The unique cone design provides a wedge type seal that not only seals across the top but also across the inside diameter.

  • 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.

  • Unlined Natural Yorker Cap with Red Tip


    Yorker Top Cap with Red Tip are supplied the tip attached. .030" orifice size

  • Target DP 9mm Vial Closures

    National Scientific

    National Target DP 9mm closures are designed to help chromatographers achieve more reliable and efficient sample analysis. Designed to accommodate nearly all chromatography autosamplers fitted for 12 x 32cm vial trays, the C5000 series closure effectively eliminates septa push-through and…

  • 9mm R.A.M.™ Ribbed Polypropylene Open-Hole Cap

    J.G. Finneran

  • Solid PE Lined Black Phenolic Caps


    Black Phenolic Solid PE Lined Caps offer good chemical resistance and low moisture vapor transmission rate. They are great for nail polish remover and higher concentration acids & alkalis. Good for non-oil products filled at room temperature. Because this lining system is paperless, your…

  • Button-Top Unlined Aluminum Seals

    DWK Life Sciences (Kimble)

    Safe and easy-to-use button-top aluminum seals allow one-handed operation. Autoclavable Tamper evident No sharp metal edges

  • Falcon®Polystyrene Plug Seal Screw Caps for 50mL Conical Bottom Centrifuge Tubes


    Falcon® polystyrene Plug Seal screw caps for 50mL centrifuge tubes are sterile. The caps are sold 50 per pack and 1,000 per case.

  • Screw Caps with Elastomeric Seal, for SuperClear® 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 hazardous or valuable materials. Packed 500 in a bag and 10 bags in a…

  • BiMetal Seals, Magnetic

    J.G. Finneran

    The BiMetal Seal is comprised of tin and aluminum materials. The outer surface (red or blue) is aluminum and the inner diameter is a silver tin.

  • GL 45 Connection System

    DWK Life Sciences (Duran)

    Ideal for the connection of elastic, soft tubing, which, for example, is used in biotechnology when transferring media with the aid of peristaltic pumps. The curved hose connections prevent kinking of the tubing. The grey PP core moves freely and allows the vessel to be changed without twisting of…

  • 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

  • White Polypropylene Cap With Poly-Vinyl Liner

    DWK Life Sciences (Wheaton)

    Suitable for a wide range of applications Excellent moisture barrier Good for mild acids, alkalis, solvents, alcohols, oil and aqueous products Cap liner consists of one mil poly vinyl film bonded to one mil HDPE on a #30 white pulp paper backing. Superior to plain pulp paper because…

  • SAFE® Cap 96P Semi Automated 96 Channel Capper for Push Caps XT

    LVL technologies

    The manual 96-Channel Capper for push cap mats as desktop-device. One process seals a complete SBS rack with push caps Variable rack heights available   Thomas No. 1148R96 Semi-automated Push Cap Sealer Semi-automated 96 channel sealer for push caps (only…

  • 11mm Crimp Seals (with PTFE/Silicone/PTFE Septa)


    MicroLiter offers products for both LC and GC applications.


    DWK Life Sciences (Wheaton)

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