Available with and without tether. Easy 3/4 turn to open and close. Synthetic O-Ring. Available in a variety of colors.

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

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

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…

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…

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…

Foxx Life Sciences’ VersaCaps and adapters allow users to easily customize carboys and Heavy Duty Vacuum Bottles for a variety of applications. VersaCap adapters are available with a variety of hose barb sizes and configurations, including molded in hose barbs and quick-connect hose barbs.…

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.

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

Screw cap for 5.0 ml MacrewTube™ Microcentrifuge tubes. Polypropylene. RNase, DNase, Pyrogen and DNA free. Autoclavable. Temp range +121 °C to -196 °C.

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

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…

Easy-on, easy-off convenience with a twist of the cap that produces an evaporation-proof seal. Available in a variety of colors for easy sample identification.

Universal plug stopper fits most 10mm, 12mm, 13mm & 16mm tubes. Produced from polyethylene (PE), the caps are available in 7 different colors.

Stress crack resistant Superior torque retention Excellent sealing characteristics Manufactured from LDPE. The unique cone design provides a wedge type seal that not only seals across the top but also across the inside diameter.

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.

Convenient, economical closures for use with the Kim-Rak or other disposable culture tubes. Sterility of contents is maintained without the need for cotton plugging. Kim-Kaps can be removed and replaced without contamination of the contents. Yellow cap color.