this low-voltage air control damper is a trusted selection for contractors requiring durable forced-air zoning components

and 3W probe assemblies

ensuring stable mixing or diverting performance

Environmental debris

Lochinvar & A.O. Smith 100275527 Flue Sensor R-407C this low-voltage air control damperThe Lochinvar & A. O. Smith 100275527 Flue Sensor with integrated grommet is a critical safety and monitoring component used across high efficiency condensing boilers and commercial water heaters. This negative temperature coefficient (NTC) thermistor provides real time flue gas temperature monitoring to the control board, ensuring the appliance operates within specified thermal limits and prevents heat exchanger damage. Designed as a direct