OEM Fitment: Designed for an exact drop-in installation

Authentic OEM Fitment: Eliminated the need for field modifications

Integrated End Switch: Includes a factory-installed auxiliary switch (4

Does this board require any field modifications

Is 28M97 compatible with all Lennox furnaces

Lochinvar & A.O. Smith 100093711 Gasket 320788-703 OEM Fitment: Designed for anThe Lochinvar & A. O. Smith 100093711 Gasket is a critical Polaris New Style Gasket designed for high efficiency condensing water heater systems. Built to withstand the rigorous cycling of commercial and residential potable water heating applications, this OEM replacement gasket ensures an airtight seal within the combustion chamber or tank assembly, preventing flue gas leakage and maintaining peak thermal efficiency. As a genuine A. O. Smith