[Technical parameters] 110-326 gas water heater valve thermostat inverted torch pressure adjustment 3.5 inch WC, outlet size 1/2 inch , inlet size 1/2 inch . Handle length 1-3/8 inch sensing tube 5-1/ 2 inch , pipe flow setting 45,000 and temperature 160F (71C). [Technical Principle] All models of 110-326 have built-in non-circulating energy cut-off (ECO) system to provide precise temperature control for tank-type . When the water temperature is too high, quickly cut off all gas supplies to the water heater. [Upgraded version! ]As a professional manufacturer of 110 series gas water heater temperature control valves, after several years of data accumulation and customer feedback, the product has been iteratively upgraded many times, and the core materials have been comprehensively improved. It has been widely recognized by customers all over the world. We have testing machines to design accurate and precise parameters for our products. All switches are performance tested. According to the factory specifications, it fits the car perfectly. Replaces old or damaged products, easy to install. Material: Metal colour: As shown Package Contents: 1 x Heater Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.