/diy/ - Do It Yourself

Found these filters on walmart clearance and decided to give it a try. I wanted 20x20 though all they had is 16x30. I figured i could make it work. After replacing the crappy grease that comes on the fan's bearings and throwing it together I was surprised at the amount of air it puts out. My filters are low end but were only $2 a pop. after a week straight of running on high. I've decided to build one for my parents as well.

also. instead of ever replacing the filters i could just take a vacuum cleaner to the backside.