NALGENE® 3131 Sealing Cap Assemblies, polypropylene screw closure, Tefzel ETFE plug, Viton fluoroelastomer O-ring; polypropylene shoulder support ring

Autoclavable assemblies seal NALGENE® Oak Ridge centrifuge tubes and bottles made of FEP. For use at recommended maximum speeds (10,000 x g or greater) without leakage, even when full. Also recommended for spinning hazardous materials compatible with centrifuge tube material. NALGENE Cat No 3131-0038 features shoulder support ring to prevent shifting, binding or collapse of bottle neck. Before autoclaving, set closure on top of the container without engaging the threads. Autoclavable/Leakproof.