The AT-T34LF504-34MIP Designed for individual and multiple lavatory applications where the temperature of hot water must be controlled for safe, economic use. An advanced thermal actuator quickly senses and compensates for outlet temperature fluctuations induced by water temperature and pressure changes in the supply line. The Series AT-T34LF504-34MIP features Vernet advanced paraffin-based actuation technology, integral checks and inlet screens to prevent cross-flow and contamination. Rugged construction features solid Lead Free* brass body and corrosion-resistant internal components ensuring years of dependable, trouble-free service. Temperature adjustment handle is simple to adjust and has a locking mechanism to prevent tampering. The Hsien Chang Series AT-T34LF504-34MIP is ASSE 1016-T and 1070 listed and cUPC and NSF 61-9 & 372 certified.