Wind Turbine
Air Vent #52605 12" Extern Turbine/Base
12" Externally Braced Wind Turbine With Base, Mill, Ventilates Based On Wind, 345 CFM At 5 MPH Winds, 544 CFM At 8 MPH Winds & 969 CFM At 15 MPH Winds.
Air Vent #52607 12" Intern Turbine/Base
12" Internally Braced Wind Turbine With Base, Brown, Ventilates Based On Wind, 345 CFM At MPH Winds, 544 CFM At 8 MPH Winds & 969 CFM At 15 MPH Winds.
Air Vent #52609 12" Intern Turbine/Base
12" Internally Brace With Base Wind Turbine, Black, Ventilates Based On Wind, 345 CFM At 5 MPH Winds, 544 CFM At 8 MPH Winds & 969 CFM At 15 MPH Winds.