MRCOOL MMBV08BE Signature Series 2 Ton Multi-Positional Variable Speed Modular Blower is an indoor HVAC air distribution component designed to deliver efficient and consistent airflow throughout a heating and cooling system. It works by using a variable-speed motor to automatically adjust airflow based on system demand, improving comfort and efficiency. https://www.partshnc.com/mrcool-signature-modular-blower-mmbv08be