Cool Attic CX4000AM Power Roof Galvanized Steel Vent Dome with 5.1 Amp PSC Motor, Mill

1600 CFM heavy-duty roof mount attic exhaust ventilator. Galvanized steel construction. Suitable for 2400 sq. ft. attic. 5.1A thermally protected PSC motor with built-in automatic cut-off. Includes 15A adjustable thermostat. Precision balanced aluminum fan blades for minimum vibration. 6-point suspensions (anchor points) for stability and high wind resistance. This fan requires minimum 600 sq. in. net free area intake vent area. Suitable for up to 8/12 roof pitch. Includes galvanized steel mesh grills to protect against insects, birds, and rodents, yet allows adequate air intake. Easy installation with no special tools required. 5 year limited warranty on all parts. No. CX4000AM: CFM: 1600 cfm, Material: Galvanized Steel, Color: Mill, Type: Power, Suitable Attic Size: 2400 sq ft, Motor Size: 5.1A, Roof Pitch: Up to 8/12, Shape: Round No. CX4000AMBL: CFM: 1600 cfm, Material: Galvanized Steel, Color: Black, Type: Power, Suitable Attic Size: 2400 sq ft, Motor Size: 5.1A, Roof Pitch: Up to 8/12, Shape: Round No. CX4000AMBR: CFM: 1600 cfm, Material: Galvanized Steel, Color: Brown, Type: Power, Suitable Attic Size: 2400 sq ft, Motor Size: 5.1A, Roof Pitch: Up to 8/12, Shape: Round No. CX4000AMWG: CFM: 1600 cfm, Material: Galvanized Steel, Color: Weathered Gray, Type: Power, Suitable Attic Size: 2400 sq ft, Motor Size: 5.1A, Roof Pitch: Up to 8/12, Shape: Round