581 SERIES VALVE SIZE 3 5/2 SINGLE SOLENOID, SPRING RETURN EL. 1 PILOT VALVE 30MM CNOMO WITHOUT FLOW CONTROLS, EXTERNAL 24 VOLT DC, 2 W PILOT VALVE WITH SINGLE/DOUBLE SOLENOID, LOCKING/NON-LOCKING MANUAL OVERRIDE. V581-I3-5/2SR-24DC-CNO-AL-EXT-T0-317265
