Gravity Shutters – fan blows flaps open when on
Vent Gravity Stainless Steel 125mm
Manufactured in quality stainless steel, this gravity louvred vent – commonly known as a flap vent – is designed to allow air to be vented into the atmosphere, while stopping cold air and pests entering the system when not in use.
It has gravity flaps that opens up when the fan runs. (the fan blows the flaps open with the air it pushes). It is ideal for keeping insects out (in windy areas, the flaps can move due to the wind creating some noise)