We have never used the more expensive ac filters before but we can really tell the difference with these. They catch so much more dust & particles out of the air, I don't have to dust the house nearly as often. So it is definitely making the air cleaner to breathe.

The 14x25 filter is probably fine if you have a smaller system (2 ton AC or less). But at 1200 cfm (typical for 3 ton AC), the airflow restriction is 0.47 wc which is quite high. It caused my AC to throw an error, even with a new filter right out of the package... not after it ran a while and caught a bunch of dust and stuff. Other Filtrete options have better airflow performance. Just wish Sam's sold em!

Had to be forced into opening. Possibly a second.

Excellent air filters. Excellent price!

Nice filters, good price for 4

Great savings being bundled together. Plus they were on sale!

Good filters. Good price compared to Walmart or Home Depot.

well packaged, filters arrived in excellent condition

I needed new filters and had been putting it off. Now I have extra.

I really like this level of filter due to our health, and a great value for a 4-pak.