Bradley Navigator Thermostatic Mixing Valve, designed for use in commercial applications.. Valve designed to control water temperature at the point of use. Common applications include showers and faucets. Paraffin wax filled thermostat insures constant outlet temperature. Certified to ASSE 1017. Certified to ASSE 1070. Certified to ASSE 1069. Certified to cUPC standards. Certified by IAPMO to meet lead free plumbing laws. 15 GPM @ 45 PSI. Incoming 3/4" NPT connections, outlet is 3/4" NPT. Maximum operating pressure of 125 PSI. Minimum temperature differential of 10 degrees Fahrenheit between incoming hot water temperature and valve set point. Manufactures limited warranty.