This water heater shutoff expansion valve is from Mifab. Designed to be used when a water heater shut-off and thermal expansion valve are needed in combination to provide protection for plumbing systems against thermal expansion. It provides relief at a pressure of 5 PSI or more below the set pressure of the primary thermal expansion relief valve. Comes with four different discharge connections: a 1/2-inch NPT, 1/4-inch PEX, 3/8-inch PEX, and a 3/8-inch compression. Mifab part number MI-CONTROL-LL.
EC Part Number: #19961
Manufacturer Number: MI-CONTROL-LL