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 price and good quality fast delivery

Works well. No complaints

I just installed this filter, so hoping it works, but... It advertises as 20x25x4. It isnt. It is actually 19.5 x 24.5 x 3 5/8. It does not fit tight in my system. Im hoping it seals well enough, and doesnt let the air flow around it. The photos are this filter next to the Honeywell original filter, which fits snugly and worked well.

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.

Good filters and everything you expect

I am very pleased with these filters. They are as good or better than the ones Ive used for years at a higher cost. They are well made. Each is packaged in light weight plastic. I use 4 at a time so this will be a money saver for me.

On time great quality and perfect fit

Good quality furnace filters at a good price!

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

I have used 3M filters in the past and been pleased, but these new filters work well and seem to be of a similar quality, but less expensive. I am also pleased that they are made locally.