Bradley, S59-4000, Thermostatic Mixing Valve with 1/2" Male NPT Connection 5 GPM Features Lead-free point-of-use valve Certified by IAPMO to meet the lead-free requirements of CA AB 1953 Easy installation and serviceability Same Bradley high quality and durability that you expect: factory-assembled and tested Lead-free brass and glass-filled polysulfone valve body provides superior strength Wax-filled thermostat ensures outlet temperature remains constant ASSE 1070 and cUPC certified 1/2" NPT Male Connections Bradley's lead-free Navigator 3/8" compression thermostatic valve is the only valve of this type available in the industry