18" Propeller Exhaust Wall Fan, High Velocity

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 PD24T-E3A EDP# 24211 115V 1-PH 1/2-HP 870-RPM 2-Speed Ball Bearing Motor 4860-CFM @0.0" S.P., 4360-CFM @1/10" S.P., 4270-CFM @1/8" S.P., 2800-CFM @1/4" S.P. Percieved Preasure Sound 11.6/Sones @5' Panel Size (Square) - 30 Inch Wall Opening 24-1/2" Depth 15-1/2" Weight 56/lbs 3D picture

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 18EPR16 115V 1-PH 1/9-HP 1050-RPM Totally Enclosed Motor 2504-CFM @0" S.P., 2345-CFM @0.05" S.P., 2149-CFM @0.10" S.P. 2035-CFM @0.125" S.P., 1553-CFM @0.20" S.P., 884-CFM @0.25" S.P. Percieved Preasure Sound 9.5/Sones @5' Can Be Shipped UPS Ground