Watts 909RPDA-OSY-GPM 2 1/2 - Part of the 909RPDA Series ZC100F-2NH The Watts GRD-640 is a

Watts 909RPDA OSY GPM 2 1 2 Part of the 909RPDA Series ZC100F 2NH The Watts GRD 640 is a The Watts GRD 640 is a stainless steel metered overflow drain designed for green roof and planter applications where controlled secondary drainage is required Specifications Body Material Bronze Brand Watts EAN 098268013214 Inlet Connection Size 3 4 IN Inlet Connection Type Female Threaded Inlet Thread Type NPT Lead Free NO Maximum Working Pressure PSI 83 Outlet Connection Size 3 4 IN Outlet Connection Type Female Threaded Outlet Thread Type NPT Part Number 0274744 Pressure Range 30 to 150 PSI Pressure Relief Setting PSI 110 Series 174A Specification Sheet 174A