Captive Aire Make Up Air Fan Blower Assembly Kit. Forward Curved, Double Inlet Pillow Block Blower with Motor Mounting Plate and All Neceesary Motor Mounting Hardware. G18 Pillow Block Blower with Motor Mounting Plate and motor mounting hardware. Motor Plate Assembled onto blower. Pillow Block ball bearings. 1-3/16″ x 34″ Shaft. Base feet can be mounted for various discharge positions. Used in heated and non-heated supply fans.