Customer reviews from Filterbuy
Filterbuy - 21x21.5x1 MERV 8 Dust & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (2-Pack) - Silver
Average customer rating
4.7
(5,822 Reviews)
Rating breakdown 5,822 reviews
5 Stars
4,839
4 Stars
491
3 Stars
209
2 Stars
108
1 Star
175
Customer Reviews for Filterbuy - 21x21.5x1 MERV 8 Dust & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (2-Pack) - Silver
Customer Rating
5
Dust Barrier
on August 29, 2025
Posted by: Theresa R.
We live on an unpaved road and these filters really put a stop to the dust going into the AC unit in the Summer. We have to change the filters monthly in the Summer, but not so much the rest of the year.
Written by a customer while visiting Filterbuy
Customer Rating
5
Affordable
on August 29, 2025
Posted by: Christel H.
Great price for the AMT of filters offered. They are working great!
Written by a customer while visiting Filterbuy
Customer Rating
5
14x25x1 merv 8 filter.
on August 28, 2025
Posted by: Anonymous
These filters are great! Ive purchased these before and would definitely recommend. Great service from this company as well!
Written by a customer while visiting Filterbuy
Customer Rating
3
The filters were oversized They
on August 27, 2025
Posted by: Bob C.
The filters were oversized They were too tight I had to force them in the a/c return .
Written by a customer while visiting Filterbuy
Customer Rating
4
New customer thoughts
on August 27, 2025
Posted by: Anonymous
Haven't actually used the filters yet. But the cardboard edging comes apart. Had to tape together.
Written by a customer while visiting Filterbuy
Customer Rating
5
Great price, great service!
on August 27, 2025
Posted by: Anonymous
Fast, easy, inexpensive. High quality filters at a great price. A no brainer for certain! Happy I made the purchase.
Written by a customer while visiting Filterbuy
Customer Rating
5
Odd size filter
on August 27, 2025
Posted by: Jaunell H.
The filters for my A/C is an odd size not easily found. Im happy to purchase these at a reasonable price. They are great quality I would recommend.
Written by a customer while visiting Filterbuy
Customer Rating
3
20x20x1 Filters
on August 26, 2025
Posted by: Marcia A.
I bought these but they run a little small & sometimes I look in & they have slipped out! All my other 20x20x1 fit perfectly! Will probably have to add some duct tape to make them fit correctly! Was a bit disappointed!
Written by a customer while visiting Filterbuy