Watts LFMMVM1 CEF 1 2 (TYPE A PEX) thermostatic mixing valve 1070 6551631 B13301 The thumb catch allows a mid opening The thumb catch allows a mid opening setting Patented Arc Set Degree Markings 5 to 20 GPM Hot Inlet Temperature Range 120 to 180 degree F Hot Water Inlet Connection Size 1 2 IN Hot Water Inlet Connection Type Union Pex Expansion Hot Water Inlet Thread Type Does Not Apply To Product Lead Free YES Maximum Pressure Differential 25 Percent 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 Does Not Apply To Product Outlet Connection Type Union Pex Expansion Outlet Temperature Accuracy + 3 degree F Outlet Thread Type Does Not Apply To Product Part Number 6551631 Series LFMMV Temperature Adjustment Range 80 to 120 degree F WiFiEnabled No Adjustable Out 80 120 F