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Watts 957N OSY FS 3 Part of the 957 Series ADS it efficiently manages heavy rainfall it efficiently manages heavy rainfall while safeguarding roofing assemblies from water damage 5 to 23 GPM Hot Inlet Temperature Range 120 to 200 degree F Hot Water Inlet Connection Size 3 4 IN Hot Water Inlet Connection Type Union CPVC Hot Water Inlet Thread Type Does Not Apply To Product Maximum Working Pressure PSI 150 Minimum Differential Temperature Fahrenheit 5 Minimum Static Pressure PSI 30 Outlet Connection Size 3 4 IN Outlet Connection Size Metric 19 MM Outlet Connection Type Union CPVC Outlet Temperature Accuracy + 3 degree F Outlet Thread Type Does Not Apply To Product Temperature Adjustment Range 60 to 120 degree F Wi Fi Enabled No Specification Sheet LF1170 and LFL1170