Wayne Combustion 21427-SER Blower Wheel 320788-702 The 48 NEMA frame size

The 48 NEMA frame size and band mount design ensure a standard fit into existing blower housings

making it an essential component for condenser fan cycling control and high-pressure safety monitoring

Built to exacting factory tolerances

Fast Response Time: Pilot-operated diaphragm design allows for quick opening and closing of larger orifices

Wayne Combustion 21427-SER Blower Wheel 320788-702 The 48 NEMA frame sizeWayne Combustion 21427 SER Blower Wheel 3. 44"W x 4. 25" OD STD is an OEM combustion air component used in Wayne burner assemblies to maintain proper airflow and stable fuel ignition. This standard size blower wheel is engineered for balanced air delivery, helping the burner achieve the correct air to fuel ratio for efficient combustion and consistent flame performance. Contractors typically replace this part during burner servicing when airflow