The Lochinvar & A.O. Smith 100112655 0.37 Inch W.C. 6-Slot Blower is a combustion air blower assembly designed to deliver controlled airflow to the burner chamber. It operates by drawing in and supplying air at a 0.37-inch water column pressure, supporting proper air circulation and efficient fuel combustion. Featuring a six-slot design, it helps maintain consistent airflow, reliable ... https://www.partshnc.com/100112655-lochinvar-ao-smith-037-wc-6-slots-blower