Nalgene® Straight Sided Screw Closures for Bottles & Carboys, Polypropylene
Nalgene® linerless screw cap closures are manufactured from natural-colored polypropylene. The autoclavable closure is made for use only with Nalgene® bottles and carboys to assure a leakproof system. Before autoclaving, set cap on top of container without engaging threads. Autoclavable. Leakproof.