Key Benefits Secure Interfacing: The 6-pin configuration provides multiple contact points for stable signal transmission across system components

By utilizing authentic AERCO replacement parts

not for proprietary communicating bus protocols

Engineered for precise signal processing and system sequencing

and Payne gas furnaces for seamless HVAC part replacement

Laars Heating Systems A2117900 Gasket 320735-701 Key Benefits Secure Interfacing: TheThe Laars Heating Systems A2117900 Gasket is a critical OEM replacement part engineered specifically for high demand hydronic and commercial boiler applications. As a veteran technician, you know that maintaininig a gas tight seal in Mighty Therm series units (models HH, PH, VW, PW, IW, and AP, sizes 500 to 1825) is non negotiable for combustion efficiency and system safety. This industrial grade gasket features a precision cut 5. 36 inch Inside