Pressure Independent Control Valve With Electric Actuator 1 1 2 In. NPT 2 Way 45 GPM Stainless Steel Trim D HO3XMSTR NPT 2 Way 20 Rango de Presion:0 a 1" w.c. NPT 2 Way 20 GPM Stainless Steel Trim DCA Profile On Off(Fail Open) 100 250 Vac Paddlewheel flow sensor NPT 2 Way 45 GPM Stainless Steel Trim DCA Profile On Off(Fail Closed) 24 Vac 1 Aux Switch Nema 3R Enclosure Pressure Independent Control Valve With Electric Actuator 1 1 2 In