Aerodynamic external cover
Installation without drilling using the snap-in pinch.
Extraction of air, with the fan 10 blades with a capacity of 20 M3/Min.
Cut 40 x 40 cm, 16 x 16in.
Roof Thickness: 25 mm to 50 mm.
Permanent ventilation: 100 cm2.
Tolerance: 75 mm (3 ").
Voltage: 12 V.
With Fly Net and blind keeps light out.