Not always easy to find correct sizes or MERV rating, so when I see them on sale, I have to get them!

These are the filters we depend on. Their efficiency is obvious via the dog hair, lint, and dust accumulation after 2 or 3 months.

I change my furnace filters every time the season changes. This makes it handy to order a year's worth every spring.

Too costly and now can only get by shipping another rip off shipping scheme by sams club by taking them out of the store and making it online only.

Just started using this product. Too early to tell how it’s working. Not sure I will be able to tell if it works any better or worse than the last filters I used

I had to pull this and put in a temporary fiberglass filter after 1 week. The airflow to the farthest rooms was poor and the rooms got too cold. The pleating looked good and the filter isn't visibly dirty. I'll stick with the Merv 7 filters.

I'm unable to give a review at this time regarding quality or performance. I bought these because they were a good value and I expect they will perform great but until I use them I can't say with certainty.

[This review was collected as part of a promotion.] I have tried several filter brands and most of them collapse after a few weeks. These hold up until it’s time to change them…every time. The filters are made well and catch everything it needs to. We change them every 60 days or so and it keeps the air quality decent in our home of 4 dogs. I will only ever use Filtrete filters from now on.

[This review was collected as part of a promotion.] I got these filtrete ultra allergen filter and it works great. It seems to keep the air clean so far and they were very easy to use. So far so good. Will definitely recommend to everyone to go out and purchase for themselves

[This review was collected as part of a promotion.] I received the 3M Filter Ultra Allergen Bacteria and Virus 1600 MPR 1601 4 ok 16 in. × 25in × 1in (49.6 cm × 63.5 cm × 2.5 cm ) filter for my furnace and they are wonderful I love that they are Ultra Alergan that so important because my family has allergies for so many things and these are helping so much.