Caps

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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…

  • Silicone Sponge Closures

    Bellco Glass

    For 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 Silicone Sponge filters are the ideal for aerobic…

  • Polyethylene Caps

    Evergreen Scientific

    Three designs Precision-molded Polyethylene (PE) stopper caps are available for every size (except 15.5 x 50 mm) of Evergreen test tube. Choose from either standard caps or the flattop style. Caps for 12 mm tubes are available in six colors. Over-fitting caps for use with sterile…

  • Corning Media Storage Caps

    Corning

    Caps fit Corning media bottles, Erlenmeyer flasks and spinner flasks with standard GL threads. Standard Plug Seal Caps are autoclavable and use a linerless plug seal design for efficient sealing. Pouring Rings fit on the lips of bottles for drip-free pouring. Autoclavable Vented Caps have a 0.22…

  • F217 & PTFE Lined Green Thermoset Caps

    Qorpak

    Green Thermoset F217 & PTFE Lined Caps are known for providing the widest range of chemical compatibility and for being the most temperature tolerant of plastic closures. The color green easily identifies the PTFE liner system. Foam backed PTFE liners resist attack from virtually all chemicals…

  • 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…

  • 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 …

  • Accessories for Spectrophotometer Cuvettes

    Globe Scientific

    The 12-place cuvette holder is made from polyethylene (PE) and holds 12 cuvettes in place for preparation work, storage and protection from tipping over. When in storage, the racks are stackable. Dimensions: 170mm x 50mm x 15mm. The caps are produced from low density polyethylene (LDPE) and…

  • Septum Screw Cap for Microcentrifuge Tubes

    Simport

    Made of Polypropylene T347AQX screw cap incorporates a pierceable septum made of chemically resistant PTFE on the outside and silicone on the inside, both components being stable over a broad range of temperatures. The septum also acts as a silicone o-ring for better sample protection. It is…

  • Stainless Steel Closures for Tubes

    Bellco Glass

    Excellent for Culture Tube and Flask Closures. 305 Stainless Steel, Non-Corroding. Lanced fingers grip firmly after repeated autoclaving.

  • 16mm 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…

  • Caps

    TriForest

    Media Bottle Cap Provides closures to polycarbonate square, round media bottles, PC vials and culture tubes. Blue is the standard color for all caps though custom colors are available upon request. Duo Cap Accompanies both flat and baffled flasks of all sizes. Also available for media…

  • Dual Position Snap Caps

    Globe Scientific

    These dual position caps are produced from low density polyethylene (LDPE) and is ribbed for easy handling. The cap is specially designed to provide aerobic or anaerobic storage of culture samples. When snapped into the tube, the cap provides a leak-resistant seal. Note: Leave the cap in the…

  • Disposable Aseptic Transfer Caps for Plastic Erlenmeyer Flasks

    Corning

    Corning® Erlenmeyer Flask Aseptic Transfer Caps are sterile (10 -6 SAL), individually double bagged and fit the 2L Corning® Polycarbonate Erlenmeyer flasks. These aseptic transfer caps can also be used on Corning 850 and 1700cm 2 plastic disposable roller bottles. Venting port…

  • 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.

  • Flange Plug Caps

    Simport

    Made of polyethylene These caps have two flexible flanges to ensure a leakproof seal. They will fit into test tubes and also in round cuvettes and centrifuge tubes.

  • GL 45 Media Storage Bottle Caps

    DWK Life Sciences (Kimble)

    Caps are designed to fit GL 45 threaded ware. Autoclavable Solid top polypropylene Cap colors available in blue, white, orange, gray, green, or pink High-temperature version with red cap available

  • Preassembled R.A.M.™ 9mm Ribbed Screw Thread Cap with PTFE/Silicone/PTFE Septa

    J.G. Finneran

    Preassembled closures and septa come ready to use. Designed to work in Agilent or other robotic arm autosamplers.

  • 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…

  • Preassembled R.A.M.™ 9mm Ribbed Screw Thread Cap with PTFE/Silicone Septa

    J.G. Finneran

    Preassembled closures and septa come ready to use. Designed to work in Agilent or other robotic arm autosamplers.

  • Open Top Caps, Polypropylene, PTFE/Silicone

    Bellco Glass

    Open top caps are ideal for applications requiring addition/withdrawal of vessel contents. Autoclavable to 140ºC.

  • 12/13mm Snap Cap for Tubes

    Globe Scientific

    Fits most 13mm glass tubes Fits most 13mm glass evacuated blood collection tubes Fits most 12mm plastic culture 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 13mm…

  • Closures And Septa For Open-Top Glass Containers

    I-Chem

    Replacement polypropylene open top closures have a bonded-in 0.045” thick septa except for 1709B03, which is a 24-414 open top closure without septa. Choose an I-CHEM® 0.125” thick, 22 mm, PTFE silicone replacement septum to complete the closure system. Thin septa are also available.

  • Universal Snap Caps

    Globe Scientific

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

  • Black Polypropylene Linerless Glass Dropper Assembly

    Qorpak

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

  • Preassembled R.A.M.™ 9mm Ribbed Screw Thread Cap with Fixed PTFE/Silicone Septa

    J.G. Finneran

    Bonded septa in the closure provides extra resealability.

  • Black Phenolic Caps

    DWK Life Sciences (Kimble)

    Screw threads Choice of six liners

  • 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…

  • 20 mL Amber Vial

    J.G. Finneran

  • Teflon® Cap Liners

    Van Note

    Teflon liners inert to most chemicals and can be autoclaved Thickness: 0.015 inch For insertion in caps of corresponding size; diameter of liners permits sealing in caps by friction fit. Liners can be inserted directly over other flat liners mounted in caps.

  • Septum Screw Cap for Sample Tubes

    Simport

    Made of Polypropylene T504AQX screw cap incorporates a pierceable septum made of chemically resistant PTFE on the outside and silicone on the inside, both components being stable over a broad range of temperatures. The septum also acts as a silicone O-ring for better sample protection. It is…

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