Leakproof Autoclavable Carboy Spigot, Fine Control Flow Rate, for use with Foxx EZGrip Carboys and Nalgene-Style Containers,1EA 1.125" Thread Diameter Spigots are made from polypropylene, which may be autoclaved at 15 PSI and 121˚C (250˚F) for 20 minutes. item package weight: 0.01 pounds