30" Propeller 36"sq 115v 1/2-hp 2-speed exhaust fan

Airmaster Fan Model LPSF18 Formally Model EPRSM18 115V 1-PH 1/15-HP Totally Enclosed Motor 1877-CFM @0.0" S.P., 752-CFM @1/8" S.P. Percieved Pressure Sound 8.4/Sones @5' Panel Size (Square) - 21-1/8 Inch Wall Opening (Square) - 18-1/2 Inch 

Airmaster Fan Model LPSF16 Formally Model EPRSM16 115V 1-PH 1/20-HP Totally Enclosed Motor 1216-CFM @0.0" S.P., 765-CFM @1/8" S.P. Percieved Pressure Sound 8/Sones @5' Panel Size (Square) - 19-1/8 Inch Wall Opening (Square) - 17 Inch 

Airmaster Fan Model 12EPR16 115V 1-PH 1/60-HP 1550-RPM Totally Enclosed Motor 897-CFM @0" S.P., 843-CFM @0.05" S.P., 754-CFM @0.10" S.P. 689-CFM @0.125" S.P., 503-CFM @0.20" S.P., 378-CFM @0.25" S.P. Percieved Pressure Sound 6/Sones @5' Can Be Shipped UPS Ground

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