Lochinvar & A.O. Smith 100233597 Gasket 326070-701 Reliable Ignition: Optimized for HSI

Reliable Ignition: Optimized for HSI (Hot Surface Ignition) and DSI (Direct Spark Ignition) systems

Reliable Mechanical Sensing: Features a spring-loaded mechanism for consistent temperature detection and circuit interruption

making it a reliable solution for residential and light commercial furnaces

Designed as a direct replacement for F61KD-3 and F61KD-3C models

Lochinvar & A.O. Smith 100233597 Gasket 326070-701 Reliable Ignition: Optimized for HSIThe Lochinvar & A. O. Smith 100233597 Gasket is a critical high temperature seal designed specifically for the flue exhaust system on heavy duty commercial boilers and water heaters. Engineered to withstand intense thermal cycling, this EPDM flue gasket ensures a gas tight seal between the heat exchanger and the venting assembly, preventing hazardous combustion byproducts from escaping into the mechanical room. This component is a direct replacement