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) • G18 Pillow Block Blower with Motor Mounting Plate and motor mounting hardware. Motor Plate Assembled onto blower.• Pillow Block ball bearings. Galvanized finish. 3500-12000 CFM. 1-3/16″ x 34″ Shaft. 1450 max. RPM.• Base feet can be mounted for various discharge positions• Used in heated and non-heated supply fans.