BUNG CAP;PLASTIC 2" FINE THREAD BUNG CAP SELF-SEALING WITH 3/4" CENTER FINE THREAD FAUCET TAP
Will fit all UN standard 55,30,15gal barrels. Has a 3/4" cut-out center threaded tap for a faucet or pipe fitting.
Most 55 and 30 Gallon UN Poly Barrels sold in the US have
one (1) course thread and one(1) fine thread 2" cap