Bradley Thermostatic Mixing Valve designed for commercial shower applications. Paraffin wax filled thermostat insures constant outlet temperature. Temperature range 90-120 degrees F. 4 GPM. Certified to ASSE 1016. Certified to cUPC standards. Incoming 1/2in. NPT connections, outlet is 1/2in. NPT. Maximum operating pressure of 125 PSI. Maximum inlet temperature of 200 degrees F. Minimum temperature differential of 10 degrees F between incoming hot water temperature and valve set point. Manufactures limited warranty.