Lochinvar & A.O. Smith 100346570 Control Valve 326058-758 This HVAC high limit switch

This HVAC high limit switch is built for durability in residential and commercial wall-mount units

As a veteran-preferred aftermarket solution

while the unique inverted bucket mechanism provides excellent resistance to water hammer and wear

Built with durable sleeve bearings

Lochinvar & A.O. Smith 100346570 Control Valve 326058-758 This HVAC high limit switchThe Lochinvar & A. O. Smith 100346570 Natural Gas Control Valve is a genuine OEM replacement engineered for high recovery residential and commercial water heating systems. As the direct replacement for 100339497, this Ultra Low NOx (ULN) gas valve features a 1 inch CAV (Constant Air Velocity) configuration. Designed for precision fuel regulation, it integrates a 750 millivolt generator power source and an internal spark igniter to ensure consistent