Lochinvar & A.O. Smith 100109721 Upper Probe THPU32HP7Y because this is a dual-voltage

because this is a dual-voltage motor

Simplified Installation: The wide hex nozzle design allows for easy wrenching and clearance during tight-fitting contractor installs

ensuring exact factory specifications for shaft length and mounting bolt patterns

This part is typically supplied as the lamp and lens assembly

allowing for field replacement without removing the entire damper frame from the ductwork

Lochinvar & A.O. Smith 100109721 Upper Probe THPU32HP7Y because this is a dual-voltageThe Lochinvar & A. O. Smith 100109721 Upper Probe is a critical OEM replacement part engineered for the inner control assembly of high efficiency commercial water heaters. As a high performance hot surface igniter, this 100109721 probe is essential for ensuring reliable ignition cycles and precise flame sensing in BTH Series units. Designed to meet exact factory specifications, it eliminates the common failure points associated with generic