Solenoid Valve for RO System 2-way normally closed Voltage:110/220V,50/ ... ,24V Pipe size:1/8",1/4" With TUV certificates Solenoid Valve for RO System 1. 2-way normally closed, 1/8 ... " & 1/4" pipe size; 2.Direct acting water solenoid valve; 3.Response ... Voltage:AC 110/220V, 50/60Hz, DC 24V9.Material of solenoid valve:Seals:EPDM, body: PP, Nylon;10.Reverse osmosis ...