Product review (5 stars): Nice clean looking louvers
We bought a bigger size louver than the vent pipe of the drier machine and glad we did that, the hot air from drier gets vented out without any obstruction so the clothes get dry faster. Installation is a breeze with 4 screws to the wall. It has a nice and clean look to it and seals up the vent when its not in use, we have had it for a few months and we don't mind replacing it every couple years or so when it gets worned out by hot air. Reasonable price and good quality plastic.