it must be coiled or looped back within the air stream

The hermetic design features a displacement of 3

it is recommended to replace the high-temp gasket simultaneously to ensure a gas-tight seal upon reassembly

it provides superior resistance against abrasion

Lochinvar & A.O. Smith 100063422 Gasket 323080-701 it must be coiled orThe Lochinvar & A. O. Smith 100063422 Gasket is a critical OEM replacement part designed specifically for sealing sight glass assemblies in high efficiency commercial boilers and water heaters. Engineered to maintain a gas tight seal under varying thermal loads, this sight glass gasket ensures that combustion monitoring remains safe and efficient. As a genuine 100063422 component (formerly 211866 000), it provides the exact fit required to prevent