Emerson 2/2 Series 8210 Pilot Operated General Service Solenoid Valve, J-box, 2-way, normally closed, Brass body, 1/2FPT x 5/8in orifice, 4 Cv, Buna-N, 200/150/135 psid max@180 F air/water/lt oil, UL Safety Shutoff valve. Use Rebuild Kit 302273-Emerson