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…

  • 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.

  • 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

  • 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…

  • Culture Tubes, KIM-KAP®, Polypropylene Closures, Autoclavable, Color Coded

    DWK Life Sciences (Kimble)

    Color Coded - natural, red, green, yellow and blue

  • Black Phenolic Caps

    DWK Life Sciences (Kimble)

    Screw threads Choice of six liners

  • 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.

  • 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.

  • Culture Tubes, KIM-KAP®, Polypropylene Closures, Autoclavable, Color Coded

    DWK Life Sciences (Kimble)

    Color Coded - natural, red, green, yellow and blue

  • Vented Easy Grip Polyethylene Roller Bottle Cap

    Corning

    Features large knurls for ergonomic handling Contains hydrophobic membrane for applications requiring gas exchange Sterilized by gamma radiationDoes not fit 490cm² roller bottles .

  • 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…

  • 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)

  • 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…

  • Screw Cap Microcentrifuge Tube Caps

    MBP

    Prevent leakage under demanding conditions. Thermo Scientific™ Screw Cap Microcentrifuge Tube Caps feature o-rings to form a secure seal. Optimized for secure short term storage in low temperatures, these autoclavable screw caps are available in a variety of colors, and adapt to your…

  • Screw Caps with O-Rings for Sample Tubes

    Globe Scientific

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

  • 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…

  • Aluminum Seals with PTFE-Faced Silicone Septa

    DWK Life Sciences (Kimble)

    Medium durometer PTFE / silicone septum Allows for good resealability, core resistance, multiple injections and easy penetration

  • 9-425 PP Threaded 9mm Caps

    Greenwood Products

  • 16mm 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.

  • Corning® GL32 Red High Temperature (180°C) PBT Screw Cap

    Corning

    The red Corning® polybutylene terephthalate (PBT) high temperature caps have a GL32 thread, can be dry heat sterilized at up to 180°C and have a Polytetrafluorethylene (PTFE) liner for efficient sealing.

  • Threaded Closures for Dram Vials

    J.G. Finneran

    F217 is a triple layer liner that consists of a foamed polyethylene core between two layers of virgin low-density polyethylene. The liner is faced with another layer of PTFE (polytetrafluoroethylene). The lined polypropylene closures have excellent chemical resistance, a low moisture transmission…

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

    J.G. Finneran

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

  • Polyethylene Stopper Caps

    Evergreen Scientific

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

  • 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…

  • 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.

  • 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…

  • 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…

  • 16mm Plug Caps

    Globe Scientific

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

  • PolyCone Lined Black Phenolic Caps

    Qorpak

    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…

  • 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…

  • 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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