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  • Caps


    Cap This cap is an ingenious combination of our TriForest septum Cap and vented DuoCAPs™. It provides an additional layer of protection to the standard septum caps. Port Cap Kit (3-Port and 4-Port) Given the multiple port needs of our customers, we have designed the port cap in…

  • CAPS

    RPI (Research Products International)

    pKa (25°C): 10.4. The working pH range in aqueous solution is 9.7-11.1

  • Uni-Flex Safety Caps

    Bio Plas

    …removed Cap colors match those on Vacutainer™ to prevent sample confusion Flexible plastic cap snaps tightly into place and creates a positive, liquid-tight seal. Fits over outside of tube, will not aerosol when opened. Holds fast when refrigerated or frozen. Resealable caps snap…

  • Plug Caps

    Globe Scientific

    These polyethylene (PE) plug caps are designed in 11mm, 12mm, 16mm and 17mm sizes and are available in a selection of colors for sample identification.

  • Screw Cap Microcentrifuge Tube Caps


    …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 scientific experiments.  Screw Cap Microcentrifuge Tube Caps Design…

  • Cap Mats & Sealing Caps


  • Acid Caps


    Acid Caps are polypropylene caps that are acid resistant. This F422 liner is comprised of a .38" LDPE core sandwiched between identical layers of .002" - .003" virgin HDPE.

  • Caps


    Grade: High Purity Molecular Weight: 221.32

  • Polyethylene Caps

    Evergreen Scientific

    caps or the flattop style. Caps for 12 mm tubes are available in six colors. Over-fitting caps for use with sterile culture tubes have two positions: loose for aerobic culturing; tight for anaerobic culturing and leakproof sealing. Caps for culture tubes are gamma-irradiated for sterility. Caps

  • Polyethylene Stopper Caps

    Evergreen Scientific

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

  • Surgeon's Caps

    Cardinal Health

    Easy-tie surgeon’s cap is designed for particulate control. Our cap is easy to don and features adjustable ties. Lightweight, nonwoven material is comfortable and absorbent.

  • 9mm Caps


    MicroLiter's 9mm screw-thread caps are available in multiple colors and septa types.

  • 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)

  • Open Hole Polypropylene Caps

    J.G. Finneran

    In addition to our standard black and white caps, we now offer our VOA Vial caps in a variety of Spring colors. This is an ideal way of color coding your samples.

  • Flip-spout Caps


    For use with immunoassay reagent products.

  • 8-Strip Caps

    Thermo Scientific Pierce

    Suitable for use with 96-well PCR plates as well as standard and low profile strip tubes Flat caps have labeled end tabs for strip orientation and removal QPCR strip caps are made from specially formulated clear polypropylene and have ultra-clear, highly polished surface. Ideal for…

  • MST™ Caps

    Evergreen Scientific

    All of our polyethelyene screw caps feature a molded-in sealing ring for a rim-seal that provides a leakproof closure without the use of a silicone gasket. Evergreen pioneered rim-seal caps in 1975. We have found that a properly designed rim-sealing cap is extremely effective in sealing small vials…

  • Kim-Kap Test Tube Caps

    DWK Life Sciences (Kimble)

    Polypropylene closure Autoclavable Natural For use with the KIM-RAK or other disposable culture tubes.

  • Snap Caps

    DWK Life Sciences (Wheaton)

    Eliminate the need for crimping and decapping tools Fits the Wheaton E-Z Vials with Snap Ring Top Manufactured from polyethylene Choose from 5 colored caps and a variety of septa

  • Dual Position Snap Caps

    Globe Scientific

    …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 loose…

  • Strip Caps

    Available in 8- or 12-strip, dome or flat. Available in a variety of colors.

  • High Grip Plug Caps

    Globe Scientific

    These polyethylene (PE) plug caps are designed in 11mm, 12mm, 16mm and 17mm sizes and are available in a selection of colors for sample identification.

  • CAPS (3-[Cyclohexylamino]-1-propane


    A common "Good Buffer" because it has a pKa value near physiological pH, it is not absorbed through cell membranes, and it is essentially transparent to UV light. It's used for culturing cells in-vitro and other biological applications. High Purity Grade pKa (20°C): 10.40…

  • 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.

  • Sample Storage Caps

    National Scientific

    PTFE-lined Film/foam backing for broad chemical resistance Not autoclavable

  • BioClean™ Bouffant Caps


    The BioClean™ Bouffant Cap provides ventilation and protection. It's lightweight, soft non-woven material is hypoallergenic and breathable. Featuring latex-free elastic and double stitched opening, the bouffant cap is compatible with a variety of environments.

  • Axygen™ Septa Caps for Screw Cap Tubes


    Slitted single caps for tubes Polypropylene Septa Cap

  • PYREX® Screw Cap Culture Tubes with Phenolic Caps


    These PYREX® culture tubes are supplied with phenolic caps to facilitate handling and sealing after autoclaving. Caps are fabricated from a special formula resistant to the effects of temperature and steam in autoclaving and are provided with a glued-in, white rubber liner. The white enamel…

  • Screw Cap Specimen Vials Without Caps

    DWK Life Sciences (Kimble)

    Disposable vials without caps Uniform diameter 28 mm with threaded neck 17 mm i.d. 9710Q19 Vial has capacity of 15 mL ; 9710Q31, 22 mL ; 9710Q43, 35 mL ; 9710Q55, 41 mL . Without cap. For suitable cap, see Thomas number 2386C70.

  • Standard PTFE Storage End Caps (20 caps)


    1 pack includes 20 caps. Standard PTFE Storage End Caps for ATD Sample Tubes. Suitable for one week storage. Required for sealing tubes while on ATD carousel.

  • Diamond Culture Tube Caps

    Globe Scientific

    …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 is indicated on each cap. Polypropylene (PP) Autoclavable Ridges inside cap

  • Standard PTFE Storage End Caps (20 caps)


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