Tube Closures

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

…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.

…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 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.

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

…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 …

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…

…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…

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…

…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…