Watts LF25AUB HP Z3 1 1 4 Part of the LF25AUB Z3 Series ZC100F 2NH ZB161 3NL OB ZB161 3NL OB 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 Press 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 1 2 IN Outlet Connection Size Metric 13 MM Outlet Connection Type Press Outlet Temperature Accuracy + 7 degree F Outlet Thread Type Does Not Apply To Product Temperature Adjustment Range 90 to 160 degree F Wi Fi Enabled No Specification Sheet LF1170 and LFL1170 NPT threaded female union inlet by NPT female outlet and a bypass feature to control thermal expansion pressure 5 to 82 degrees C)