Ideal for hot water heaters, providing flow rates as high as 23 gallons per minute. Compact design and Lead Free* brass construction simplify installation and maintenance while ensuring years of dependable service. Unique handle mechanism allows exact temperature selection to be locked-in for added protection. The Series LFLM490 and LFLM490-10 features Powers' advanced paraffin-based actuation technology, integral checks and inlet screens to prevent cross-flow and contamination. The thermostatic element ensures optimal, consistent performance over a wide range of temperatures. The Series LFLM490 & LFLM490-10 are ASSE 1017 listed and CSA B125 certified.