“O” Ring Inner Shaft for 0.335, 1/2′, 3/4″

#9 OR 007 3/4” VALVE CHANGER INNER SHAFT O-RING (10 PACK) FOR PSVC 500 1/2″ SCH 40 VALVE CHANGER 2FT. C/W STUFFING BOX HOUSING – 3/4″ VALVE AND 3/4″ X 1/2″ SCHD 40 SERVICE PIPE