NALGENE 38-430 CAP WITH STAINLESS THREAD INSERT

Closed System Design

Reduce chemical evaporation and exposure to hazardous vapors with Vaplock solvent reservoir caps. Combine with secure fluid connections and Vaplock air inlet or relief valves to maintain pressure equilibrium within the bottle.

Durable Port Threads

Designed to accept industry-standard 1/4-28 threaded fittings, these caps include robust stainless steel thread inserts to minimize cross-threading and damage to soft PTFE ports. For use with semi-rigid tubing equal to or less than 1/8” outside diameter.

Anti-Twist Design

To prevent twisting of tubing when the cap is removed or attached, the inner body rotates independently of the outer collar.

Chemically Compatible

Constructed of inert PTFE, the body of the cap provides ideal chemical compatibility with laboratory solvents. Under normal use, the outer Polypropylene collar is non-wetted.Caps may be autoclaved to 140°C. Please inquire for other material options and custom designs.