Includes One-Piece Cartridge: Simplifies installation and maintenance Double Ceramic Pressure Balance Cartridge: Combination of Ceramic Disc Mixing Valve and a Ceramic Balancing Spool in a one-piece cartridge Ceramic Disc Mixing Valve: Assures a lifetime of drip-free performance and smooth handle operation Ceramic Balancing Spool: Maintains a constant output temperature in response to changes in relative hot and cold supply pressure. Ceramic material is unaffected by mineral deposits and harsh water conditions Integrated Check Valves: Engineered to eliminate cross flow Adjustable Hot Limit Safety Stop: Limits the amount of hot water allowed to mix with cold. Reduces the risk of accidental scalding Comfort Zone: Offers a wider shower range to fine tune the desired temperature within the useful temperature zone Back-to-Back Capability: Hot and cold can be reversed quickly and easily Brass wall escutcheon Metal lever handle;For Use with Flash Shower Rough-In Valves