Single function operation. Single lever handle for ease of temperature control. Monitor Scald-Guard valve keeps water temperature within +/-3degreesF. For use with MultiChoice Universal rough valve body. Solid brass construction ensures quality and reliability. Valve is not included, must purchase separately. Monitor Valve protects from rapid changes in hot or cold water. Backed by Delta Faucet's 10-Year Limited Warranty | Delta® Windemere® Valve Only Trim 1L 14S (Recertified), Bronze, BT14096-OB