Description
The Lochinvar & A.O. Smith 100233609 is a genuine OEM replacement Gasket for the Flapper Valve, engineered to maintain a proper seal within compatible water heating equipment. Using authentic manufacturer parts helps preserve system efficiency, prevents leaks, and extends the service life of your unit.
Product Overview
This flapper valve gasket is designed as a direct OEM replacement for select Lochinvar and A.O. Smith water heaters and boilers. Replacing a worn or damaged flapper valve gasket restores the integrity of the valve assembly, helping to prevent pressure loss, water leakage, and inefficient operation.
Key Features
- Genuine OEM replacement part from Lochinvar & A.O. Smith
- Designed for use with compatible flapper valve assemblies
- Helps maintain a secure, leak-free seal
- Supports optimal system performance and efficiency
- Direct drop-in replacement for simplified installation
Application
- Compatible with select Lochinvar and A.O. Smith water heaters and boilers
- Intended for use as a service and maintenance replacement part
Ordering Information
- SKU: 100233609
- Brand: Lochinvar & A.O. Smith
- Part Type: Gasket – Flapper Valve
Always verify compatibility with your specific model number before ordering. Consult your equipment’s service manual or contact a qualified HVAC technician for installation guidance.







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