- 21 air foil curved vanes with rolled vane edges to deflect water
- Big Whirly 14 in moves up to 37% more air than the 12 in
- Easy installation
- Large flashing for easy installation
- Permanently lubricated upper and lower ball bearings that ensure long life and no maintenance
- Reduces energy bills
Description
Specifications
25.257.257
6.75lb
19in
21in
24in
110 MPH
20 x 20 in
External
Lomanco
Ventilation Products
Aluminum
17-5/8 in
12/12
12 in
