Nalgene™ Polypropylene, Replacement Coupling Inserts, straight-through coupling, 1/4 inch

Protect against leakage, breakage and contamination by using Thermo Scientific™ Nalgene™ Silicone Sanitary Gaskets for Nalgene™ Carboys. Constructed of platinum-cured silicone, the gaskets ensure the highest degree of purity for biopharmaceutical applications.

Securely close off 3/4 in. or 3 in. sanitary ports on carboys with Thermo Scientific™ Nalgene™ Polypropylene End Caps. These are reliable, repeatable seals when used in combination with a silicone gasket and true union clamp.  A groove on underside of end cap accepts standard sanitary gaskets for sealing the systems.

Designed to aseptically handle solutions in biopharmaceutical, biotechnology and laboratory liquid transfer applications, these two- and three-ported closures are designed for Thermo Scientific™ Nalgene™ Biotainer™ bottles and carboys. With Animal Derived Component-Free (ADCF) components, including seals that are sonically-welded to the cap, and leak-proof closures, security of high value contents are guaranteed during fluid transfer. With ADCF components, including seals that are sonically welded to the cap, and leak-proof† closures, security of high value contents are guaranteed during fluid transfer.

Create aseptic handling solutions for pharmaceutical, biotechnology and laboratory liquid transfer applications with Thermo Scientific™ Nalgene™ Top Works™ Flexible Systems for Nalgene Bottles, Carboys and Media. Modified closures included platinum-cured silicone stopper inserts and tubing. These leakproof systems offer more secure, aseptic handling of high-valued products compared to pouring, and they are available with various ports, tubing lengths and closure sizes.