Series L111 Thermostatic Mixing Valve is used in commercial, educational, and institutional applications to mix hot and cold water in hot water supply systems at point-of-use locations, such as in under-the-sink installations. It consists of a tamper resistant cover, brass body construction with NPT threaded, female inlet and outlet connections, EPDM O-rings, polysulfone cartridge, and polysulfone, tamper-resistant cover. Series L111 offers high flow rate (up to 10 gpm (38 lpm), is easy to install and maintain, and can be mounted to a wall or suitable enclosure. It is ideal for supplying tempered water to sinks, showers, or lavatories in schools, restaurants, hospitals, nursing homes, and public restrooms. Working Pressure: 125psi (8.6 bar). Accurate within +/-3°F (+/-1.7°C). Temperature Range: 80°F to 120°F. ASSE 1069 and 1070 listed.