is a specialized dual check valve with an intermediate atmospheric vent designed specifically for non-health hazard applications

This kit includes 7 high-tolerance spuds

By replacing a cracked or failing HVAC heat exchanger with this factory-authorized assembly

The 5225-028 is an automatic reset limit control

it serves as a direct drop-in replacement for aging or failed HVAC gas valves

Lochinvar & A.O. Smith 100304118 Control 323613-751 is a specialized dual checkThe Lochinvar 100304118 User Interface Control Board is a critical OEM replacement component engineered for precise communication between the technician and the boilers central processing unit. As a genuine Lochinvar boiler part, this interface allows for real time monitoring of HVAC parameters, sensor feedback, and modulation rates. Designed to integrate seamlessly with the SMART SYSTEM control architecture found in Knight, Cadet, and Armor series