American Standard Plumbing Mixing valve cycles from "Off" to "Cold to "Warm" to "Hot". Hot limit safety stop. 47mm ceramic disc valve cartridge with back-to-back capability. Solid Brass valve body with nominal 1/2" inlets/outlets. 1-1/2" to 3-1/4" roughing-in depth Female thread I.P.S. inlets/outlets Screwdriver stops Valve Body ONLY. Handle and Trim must be ordered separately.