Tefzel® ETFE, PP. Chemically resistant spigot for Nalgene® carboys; accepts 16 mm inner-Ø tubing. Identical to Order No. 5139925, but body and plug are Tefzel® ETFE. Does not include tubing adapter. Use for applications with selected solvents and other chemicals where PP spigots are unsatisfactory. Autoclavable. 1 1/8" to 12 straight female threads.