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

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 PD30T-G3A EDP# 24221 115V 1-PH 1/2-HP 845-RPM 2-Speed Ball Bearing Motor 7380-CFM @0.0" S.P., 6850-CFM @1/10" S.P., 6750-CFM @1/8" S.P., 5500-CFM @1/4" S.P. Percieved Preasure Sound 16.7/Sones @5' Wall Opening 30-1/2" Depth 17-1/8" Weight 75/lbs 3D picture