Laars Heating Systems A2123407 Impeller R-22 4670 is the cross for

4670 is the cross for Aprilaire 4237

protecting the motor and housing assembly

This component is specifically engineered for intermittent duty

sufficient for powering modern 24V HVAC controls and multi-stage ignition systems

allowing it to cycle the condenser fan motor effectively to stabilize the high-side pressure in R-410A systems

Laars Heating Systems A2123407 Impeller R-22 4670 is the cross forFor field technicians and mechanical contractors maintaining high performance hydronic systems, the Laars Heating Systems A2123407 Impeller is a critical OEM replacement part designed for precise flow management. This centrifugal impeller is engineered to meet the exact tolerances required for Laars boilers and volume water heaters, ensuring the HVAC pump assembly maintains its design head pressure and flow rate. By restoring hydraulic balance, this