4,000 CFM @ 20" SP Industrial Air Products IAP 21-40 Blower Fan
Model 21-40 orbcl20arr8. S/N 20291-1. Carbon steel construction. Arrangement 8. Radial blade wheel. Rotation cwbh. 22" diameter inlet. 9" x 20" rectangular outlet. 25 HP motor, 208-230-460 volt, 1770 rpm, 284t frame Marathon electric motor. Curve on file. Overall dimensions: 56" W x 75" L x 61" H. Demonstration video on file.