Shop for 81 X 68 X 4 Rectangle vents for the correct 81 x 68 custom louvre vents with a front flange and a 3 1/2 inch depth
81 x 68 x 4 rectangle front flange louvered loft vent
In a topsy turvy place, every now and then you need regularity. A rectangle vent might be just the thing. Simple, yet sophysticated in appearance. Dress your home the way you want. 81x68x4rtlvffss
Reinforced to outlast the competition.