24" Propeller Exhaust Wall Fan, High Velocity

Airmaster Fan Model EPRSM7 115V 1-PH 1/30-HP Totally Enclosed Motor 121-CFM @0" S.P, 60-CFM @1/8" S.P.  Perceived Pressure Sound 4.8/Sones @5'  Panel Size (Square) - 11-1/8 Inch Wall Opening (Square) - 8-1/2 Inch 

Airmaster Fan Model H48V836-3 3-HP 230/460v 3-PH 850-RPM Totally Enclosed Motor 27420-CFM @0" S.P., 25800-CFM @1/8" S.P, 24350-CFM @1/4" S.P. 22600-CFM @3/8" S.P. Percieved Pressure Sound 40.7/Sones @5'

Airmaster Fan Model LPSF20 Formally Model EPRSM20 115V 1-PH 1/15-HP Totally Enclosed Motor 2235-CFM @0.0" S.P., 920-CFM @1/8" S.P. Percieved Pressure Sound 9/Sones @5' Panel Size (Square) - 23-1/8 Inch Wall Opening (Square) - 20-1/2 Inch 

Airmaster Fan Model PD18T-D3A EDP# 24201 115V 1-PH 1/16-HP 1110-RPM 2-Speed Ball Bearing Motor 2680-CFM @0.0" S.P., 2414-CFM @1/10" S.P., 2332-CFM @1/8" S.P., 1789-CFM @1/4" S.P. Percieved Preasure Sound 12/Sones @5' Panel Size (Square) - 24 Inch Wall Opening 18-1/2" 3D picture