Description
OEM Replacement Sight Glass Gasket
The Lochinvar & A.O. Smith 100208762 is an OEM replacement sight glass gasket designed to maintain a secure, leak-free seal on compatible boiler and hydronic heating equipment. Proper sealing at the sight glass is critical for safe system operation, allowing technicians and operators to visually monitor water levels and system conditions without risk of leaks or pressure loss.
Key Features
- OEM part number 100208762 ensures direct-fit compatibility with applicable Lochinvar and A.O. Smith boiler models
- Engineered to provide a reliable, pressure-tight seal around the sight glass assembly
- Helps maintain safe visual water-level monitoring in boiler and hydronic systems
- Durable gasket material designed to withstand the thermal and pressure demands of commercial and residential heating applications
- Easy drop-in replacement to minimize downtime during service calls
Application
This gasket is intended for use on Lochinvar and A.O. Smith boilers and hydronic heating systems that utilize a sight glass assembly. Always verify compatibility with your specific equipment model before installation. Refer to the manufacturer’s service documentation for proper torque specifications and installation procedures.
Why Choose OEM Parts?
Using genuine OEM replacement parts like the 100208762 ensures your equipment operates as designed, protects system warranties, and reduces the risk of callbacks due to improper fitment or premature failure.







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