Watts 1/2 in. Lead-Free Brass SWT x SWT Tempering Valve

Use this 1/2 in. hot water extender mixing valve with your boilers and water heaters. This valve features a dial adjustment cap, stainless still springs, solder connections, thermostat and a lead-free brass body. It is hydraulically operated and opens a spring-loaded check in the cold water inlet to allow hot and cold water to mix. It's temperature range is 120 to 160 degrees F.|Lead free brass body construction|Solder connections|Thermostat assembly is easy to maintain, remove and replace|Dial adjustment cap|Low pressure drop|Adjustable knob for temperature control