Lochinvar & A.O. Smith 100233698 Gasket 321702-401 Cross-reference your water heater’s serial

Cross-reference your water heater’s serial number and model number

The "C" suffix typically denotes a commercial packaging or localized revision for specific distribution channels

reduced moisture output

It requires a Ranco LDK Series solenoid coil

automatically returning to a fixed close at 150°F once internal temperatures stabilize

Lochinvar & A.O. Smith 100233698 Gasket 321702-401 Cross-reference your water heater’s serialThe Lochinvar & A. O. Smith 100233698 Gasket is a critical OEM replacement part engineered for high efficiency condensing boilers and commercial water heaters. This venturi gasket serves as the primary sealing interface between the blower fan and the venturi assembly, ensuring a precise air fuel mixture for optimized combustion efficiency. Fabricated from high grade synthetic elastomers, it provides excellent thermal resistance and structural