Tube Closures

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Tube Closures
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  • Diamond Culture Tube Caps

    Globe Scientific

    …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 is indicated on…

  • 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 in…

  • For culture tubes and flasks with DeLong®-style necks and ports Molded pressure fins for firm grip Manufactured from non-toxic, autoclavable polypropylene Seven colors for easy identification Six sizes from 13 to 38 mm Same evaporation and sterility characterisitcs as…

  • …pellets. A positive seal design allows repeated cap closures that will not pop during boiling. All tubes feature external graduation marks and frosted writing surfaces. Available in natural and five additional colors. All Microcentrifuge tubes are certified RNase/DNase-Free, Human DNA/PCR…

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

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

  • SAV-IT™ Closures

    Thermo Scientific

    Closure will not crack or pop off. Seals inside test tube or over tube rim. The 12mm and 13mm closures seal over the rim of either 12mm or 13mm tubes, and when reversed seal inside 10mm tubes. The 16mm closures seal over the rim of 16mm tubes, and when reversed seal inside 12mm and 13mm tubes.

  • Universal Closures

    Spectrum Med

    Specially designed with gentle sealing ridges, Universal Closures are the ideal all-purpose closure that creates a reliable seal with all membrane grades, types and thicknesses. Available in a variety of colors for easy sample identification.

  • …indicates a secure closure has been formed. The extra tight seal will not come open during processing yet will open easily with a little thumb pressure. All caps have a textured writing surface on top with a needle access target in the center. The 1.5 mL and 2.0 mL tubes have an additional textured…

  • Closure 18-415 0

    DWK Life Sciences (Kimble)

    Closure of one-piece construction with a seal achieved due to a unique inner sealing ring. Intended for use with 73750, 73760 and 73770 disposable culture tubes and 73785 disposable centrifuge tubes. Natural polypropylene Autoclavable Designed from ASTM Specification E982

  • Withstand up to 50,000 x g in refrigerated or non-refrigerated centrifuges. Before autoclaving, just set closure on top of the tube without engaging the threads. Must be filled to 80% of the total capacity. With polypropylene screw closure.

  • Top Works™ Closures

    Thermo Scientific Nalgene

    Flexible, leak proof, silicone Top Works Systems include solid, 2-port and 3-port versions Platinum-cured silicone tubing is fused through stopper to form one-piece closure system Autoclavable and leak proof systems permit aseptic liquid transfer from most NALGENE bottles and carboys …

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

  • …Scientific™ Nalgene™ Friction-Fit Polypropylene Closures for Plastic Centrifuge Tubes from the centrifuge with a convenient pull tab. These autoclavable closures are designed to fit Nalgene™ round and conical centrifuge tubes. They may not be liquid-tight during high-speed…

  • …Sample Library Tubes are designed for long-term specimen storage. Caps and tubes come in different packages. Separate closures strips are available. 96 tube format with printed alpha numeric grid and a clear lid. Library tubes available as: Individual tubes, 8-well, and 12-well tube strips. …

  • …Collection Tube was designed for ease-of-use and helps to ensure that a quality capillary blood sample is collected. The wider-diameter BD Microtainer® Tube with BD Microgard™ Closure features an integrated collector and improved mixing ability. This full array of microcollection tubes is…

  • Thermo Scientific* Samco Tube Closures are available as flanged caps, two-position snap caps and universal caps. Our processes are monitored with quality checks which provide continued lot-to-lot uniformity and reliable performance.

  • …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 …

  • The stainless steel cylindrical closures are excellent for microbiology and related applications. Non-contaminating closures may be autoclaved repeatedly without loss of resilience. The indentations on the top surface permit adequate exchange of gasses under aerobic and anaerobic conditions, yet…

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

  • Made of polyethylene An economical way to recap blood drawing tubes, disposable glass test tubes and plastic culture tubes. Flexible VACUCAP™ closures protect from aerosols of highly infectious microorganisms. They guard samples against cross-contamination and laboratory work areas…

  • Closure System for 2D SAFE® Tubes: Screw Caps XT (96/48/24) The patented 2-phase TPE compression enables an optimal leak-tightness. The double phase-sealing is a particularly innovative feature. While closing, the first contact between the lateral edge of the tube and screw cap guarantees…

  • Since Spectra/Por Standard Closures float, they aid in buoyancy and vertical orientation when applied to the tubing top end. Autoclavable and available in a variety of colors for easy sample identification. For use with Spectra/Por Standard Regenerated Cellulose membranes only.

  • GL Closures & Accessories

    DWK Life Sciences (Duran)

    …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 the firmly attached tubing. Sterile…

  • 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…

  • For 9195R10 series plant tissue culture tubes Autoclavable caps available in natural or orange color. Two positions: closed, for humidified environments; and open, for gas exchange. Drip ring minimizes contamination. Flexible interval ribs hold cap firmly in place.

  • …T336 Series) to the tube in order to eliminate mix-ups and contamination. All tubes and closures are manufactured in a clean environment. Closures in natural color can be COLOR CODED by the use of T345 Series Colored Capinsert™ inserted on the top of the closure. This is accomplished…

  • Snap-seal cap Smooth interior Non-sterile Small volume specialty microcentrifuge tubes are designed for lesser sample sizes. These 0.4 and 0.25 mL size tubes have an attached snap-seal closure that provides a leak-tight seal. Specially formulated low-density polyethylene provides a…

  • …for food safety Leak Resistant - Easy Grip Caps have an integral seal ring design for secure closures that eliminate leakage when used as recommended Ease of Use - Exceptionally clear tubes have black printed graduation marks to full volume of 15mL or 50mL, a bright white marking space,…

  • …Oakridge style tubes are autoclavable and re-usable and are designed with leakproof linerless closures. Oakridge Style Centrifuge Tubes Features: Tubes have round bottoms and consistent wall thickness for high speed refrigerated or non-refrigerated centrifugation Tubes withstand up…

  • Oak Ridge™ Centrifuge Tubes

    Thermo Scientific Nalgene

    …Resists any acid, base or solvent. Autoclavable tubes withstand temperatures from -100°C to +150°C. For use in refrigerated and non-refrigerated centrifuges up to 50,000 x g. Before autoclaving, just set closure on top of the tube without engaging the threads. For proper performance…

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