Watts 774 OSY 8 Part of the 774 Series ZA100F 4NH Specifications Compatible Series or Model Specifications Compatible Series or Model 800M4QT Compatible Size Used On 1 2 IN to 3 4 IN Kit Contents Check Valve Repair Kit Specifications Body Finish Rough Bronze Buy American Act Compliant YES Capacity 95 GPM at 45 PSI Cold Inlet Temperature Range 40 to 80 degree F Cold Water Bypass No Cold Water Inlet Connection Size 1 1 4 IN Cold Water Inlet Connection Type Female Threaded Cold Water Inlet Thread Type NPT Flow Rate 4 to 95 GPM Hot Inlet Temperature Range 120 to 180 degree F Hot Water Inlet Connection Size 1 1 4 IN Hot Water Inlet Connection Type Female Threaded Hot Water Inlet Thread Type NPT Maximum Working Pressure PSI 125 Minimum Differential Temperature Fahrenheit 5 Minimum Static Pressure PSI 30 Outlet Connection Size 1 1 4 IN Outlet Connection Size Metric 31 MM Outlet Connection Type Female Threaded Outlet Temperature Accuracy + 7 degree F Outlet Thread Type NPT Temperature Adjustment Range 90 to 180 degree F Wi Fi Enabled No Specification Sheet LFN170 and test cocks This assembly consists of a lightweight stainless steel body