4-way Type T/P (thermostatic/pressure balance) ¾ coaxial complete valve 2 integrated volume controls 2 different temperatures 4 outlets: two ½outlets male NPT and two ¾ outlets male NPT or ½ female NPT 2 thermo/pressure balance coaxial cartridges with check valves Service valves ¾’’ inlet male NPT, dedicated main water supply required