Description:

Fit Hole Diameter: 80mm - 90mm / 3.15" - 3.54"; Total Size: 110mm x 37mm / 4.33" x 1.46" (OD*T). Made of ABS plastic, suitable for many occasions.. Easy installation: can be installed on the wall or ceiling. Just insert it directly into the hole.. Widely used in bedrooms, bathrooms, kitchens, living rooms, offices, warehouses, etc.. The middle cover can be easily removed when needed. And you can push the small handle to choose whether to ventilate..