Bell & Gossett 115112 Pump Accessory 326058 758 this genuine Rheem blower fan this genuine Rheem blower fan provides the mechanical tolerances required to restore factory spec cooling and heating performance while reducing acoustic noise levels Which air handler models are compatible with the HKR 05C The Bell & Gossett 115112 (Model BA 3X) is a high performance Suction Diffuser Plus designed to optimize flow conditions at the centrifugal pump inlet the 16 mesh bronze start up strainer is intended for initial system debris collection and should be removed after the first 24–48 hours of operation to prevent flow restriction