This Rite-Temp pressure-balancing valve works behind the scenes to prevent scalding and thermal shock for optimal comfort. Additionally, the unit features a diaphragm design that virtually eliminates freeze-ups from contamination and water debris. When paired with compatible trim, this valve delivers a high-temperature limit stop and an optimal comfort zone, so you can set a maximum high and then find and maintain your desired water temperature. Pressure-balance diaphragm technology provides reliable anti scald protection and maintains mixed water temperature within +/- 3 degrees Fahrenheit. Maximum flow rate of 13.0 gpm at 45psi - ideal for multiple outlet shower installations or rapid bath filling. 3/4-inch NPT connections. Integral shut-off valve stops. Adjustable high-temperature limit stop to control maximum temperature. Deep rough-in kits are available ‚Äö√Ñ√¨ refer to individual trim design. Requires valve trim (sold separately). Cartridge is reversible for installations where hot and cold supplies are reversed. Forged brass construction.