Filtrete 20x20x2 AC Furnace Air Filter, MERV 11, MPR 1000, Allergen Defense, 3-Month Pleated 2-Inch Electrostatic Air Cleaning Filter, 4 Pack (Actual Size 19.5 x 19.5 x 1.75 in)

I used these to build a diy-air filter using a box fan and duct tape.

Good value and easy to install

These filters do their job; keep the dirt and any debris out of my house…

I didn’t know 2” thick filters existed or that my ac needed one until my last service call. My system has always had a lot of dust and I’m hoping this is the solution. Filters were a good price and came quickly.

I've bought other brands on Amazon like Nordic / US Home filter. The main difference is the construction. Many of the no-name brands I've come across are pooly glued together or glued excessively, use thinner cardboard boxing, are shaped slightly longer/shorter, etc. Anything you can do to make it cheaper. but these Filtrete filters are great! And are a cut above the rest.

Was looking for some temporary 2in filters and these fit perfectly

My wife and I have allergies so we have 5 box fans with these attached they make great air filters. You can just tape them on with blue painters tape, it comes off easy when you need to swap out a filter.

Wish the cardboard was a little heavier but the filter works great. Took all the dust out of the air in my shop in no time on the back of a box fan.