This is the thermostatic valve body replacement which is the internal valve for the IVAR UNIMIX-C Blending/Mixing Valve.
Thermostatic Valve Body 3/4" (DN20)
Uponor 1002373 SPI V4 Thermostatic Valve Body
For SABAF Designed Gas Safety Valve Body for Residential Gas Stove Use
For SABAF Copper Aluminum Gas Valve Body for Reliable Safety Performance