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…

  • Foam Plug

    Chemglass

    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…

  • 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…

  • Pre-Assembled 9mm Closures

    labForce (a Thomas Scientific Brand)

    labForce Brand pre-assembled closures and septa come ready to use. Designed to work in robotic arm autosamplers. Select the closure and liner combination for your sampling requirements.

  • Universal Snap Caps

    Globe Scientific

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

  • Polyethylene Stopper Caps

    Evergreen Scientific

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

  • All septa are made with a high grade silicone material to minimize needle coring.

  • Screw Caps for Microtubes

    Globe Scientific

  • 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® 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…

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

  • 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.

  • 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.

  • 12mm Flanged Plug Caps

    Globe Scientific

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

  • 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

  • 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…

  • 13mm Flanged Plug Cap

    Globe Scientific

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

  • Black Phenolic Caps

    DWK Life Sciences (Kimble)

    Screw threads Choice of six liners

  • GL Closures & Accessories

    DWK Life Sciences (Duran)

    Premium pour caps & ring Compound formulated without colour dye to avoid risk of leaching. Service temperature limit from –196°C to +200°C. Very high chemical resistance. High leak tightness through use of PTFE coated silicone seal. A matching TpCh260 pouring ring is also…

  • The new and improved CG-1167 HPLC Cap system provides the safest and most economical way of storing high performance, low pressure liquid chromatography mobile phase, sparging preventing bubbles from entering the system as well as collecting sample waste.The bottle is blue tinted plastic coated…

  • 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…

  • 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…

  • 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.

  • 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…

  • 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…

  • When you are unable to use PTFE as a liner - the Finneran Polyimide/Silicone lined 9mm Ribbed closure is a perfect alternative.  The polyimide is amber translucent, and the white silicone rubber is a high purity rubber composition resulting in low leachables.  Use with Finneran…

  • 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…

  • Available in a wide assortment of colors. Designed for use with Waters, Shimadzu, Spectra-Physics, Varian and other autosamplers. The Top Seal™ closure with a 0.010" molded septa allows for easy needle penetration and is inert to most solvents. The one piece design saves time by…

  • 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…

  • Magnetic Screw Thread Headspace Vial Caps

    DWK Life Sciences (Kimble)

    Designed to fit 18 mm screw thread headspace vials. 1184G07 (73880-18) is silver with red PTFE/white silicone press fit septum 1184G08 (73885-18) is silver with red PTFE/gray press fit butyl rubber septum

  • 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…

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