BNX TruFilter 20x20x1 MERV 13 (4-Pack) AC Furnace Air Filter - MADE IN USA - Electrostatic Pleated Air Conditioner HVAC AC Furnace Filters - Removes Pollen, Mold, Bacteria, Smoke (Actual Size: 19 11/16’’ x 19 11/16’’ x 3/4‘’)

Good filters and everything you expect

I ended up replacing these with more typical filters because the airflow resistance of the very fine material was so strong that my AC return made an annoying whistling noise. The problem with extremely fine filter material like this is that most AC systems are not built to tolerances that ensure the only air comes through the filter. So if you increase the resistance of airflow through the filter, any openings in the air duct - sections that arent perfectly sealed, or flexible ducts that have gotten nicked during installation or *shudder* cleaning, airs going to enter there. And that air is going to come with whatever material is floating around in your walls and ceilings, which might include insulation material, abundant dust, or whatever else works its way into the house. If your application is something like a portable AC unit or a truly sealed system, these are great. (just remember to change them, because yeah, they DO pick everything up!) For use in a typical residential system, I would say they have more downside than benefit, including the higher cost and more frequent need for replacement.

Worked well

Merv 13 filters. Very good, fast shipping.

I use these filters in my HVAC unit and find them easy to install and remove. They do the job of keeping my unit clean, free from dust and operating smoothly.

Havent used yet. Appear to be well made.

The service was fast and much easier than tracking down the correct filter by going to the store.

The filter is not a heavy duty type but is okay compared to a very basic one that youll find at any retailer store

The first filter I put in...buckled in the middle. I didnt notice how bad it was until I went to replace it. I put another one in,..turned on the fan this time so I could observe it. It buckled in the middle almost immediately. Not going to buy these again....just way too flimsy

Had smokers in the house so bought these to help remove the smell, fantastic! Well worth the extra money