ASCO 8210G002-120/60, 110/50 Brass Body Pilot Operated Solenoid Valve - 1/2" NPT, 2-Way Normally Closed, Nitrile Butylene Seal, 5/8" Orifice, 4 Cv Flow, 120V/60Hz & 110V/50Hz - Ideal for Water, Air, and Oil Control in HVAC, Industrial Automation, and Plumbing Systems