1/2 Inch Duplex Check Valve & Spares Set At 5 Kg/Sq.Cm. Kpa Drg. No. Er/Kpa/El/V A.3He.1963B, Items 1 To 19 Or Wsf Pt. No.Ic 70024/2. [ Warranty Period: 30 Months After The Date O F Delivery ] ]