RS-2 Rising Stem 220V 60Hz electric powered valve operator. Complete with LCD revolution counter, torque arm extension bar, manual and steel storage case. Operates standard 1" (25.4mm) non rising valves with optional drive adaptor hub 09-402-00. Operates valves from 6 to 60" (15.2 to 152.4 cm), open 4" hub design accomodates most rising stems, maximum torque of 700 ft/lbs (949 Nm). Forward and reverse operation with finger tip control.