Customer reviews from Filterbuy
Filterbuy - 13x21.5x1 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (4-Pack) - Gold
Average customer rating
4.4
(7,007 Reviews)
Rating breakdown 7,007 reviews
5 Stars
5,174
4 Stars
754
3 Stars
439
2 Stars
245
1 Star
395
Customer Reviews for Filterbuy - 13x21.5x1 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (4-Pack) - Gold
Customer Rating
5
Filterbuy always been responsive to
on December 28, 2025
Posted by: Roger C.
Filterbuy always been responsive to my filter needs. Best source for my furnace filter needs.
Written by a customer while visiting Filterbuy
Customer Rating
1
The filters are to small
on October 10, 2025
Posted by: Anonymous
The filters are to small 4 inches are not the actual size very disappointed
Written by a customer while visiting Filterbuy
Customer Rating
5
Perfect fit
on October 10, 2025
Posted by: Anonymous
I was very impressed with the exact fitting of these filters. We have tried other filters that just didn't fit. Thankful to find these with the exact fit
Written by a customer while visiting Filterbuy
Customer Rating
1
They dont fit there not20x20x4
on October 8, 2025
Posted by: Anonymous
Will never buy this product again stuck with stack of filters cant use
Written by a customer while visiting Filterbuy
Customer Rating
5
Perfect fit for an unusual size
on October 6, 2025
Posted by: Melody D.
I was unable to find this small size anywhere else . They were promptly shipped and fit the opening perfectly !!!!
Written by a customer while visiting Filterbuy
Customer Rating
5
Great filters
on October 5, 2025
Posted by: Anonymous
I like my new filters, they fit a lot better than the box store ones. I will bye them again. .
Written by a customer while visiting Filterbuy
Customer Rating
5
Good place to get your
on October 4, 2025
Posted by: Erhan S.
Good place to get your filters for your air conditioning unit
Written by a customer while visiting Filterbuy
Customer Rating
5
Everything seems to be working
on October 2, 2025
Posted by: Alton B.
Everything seems to be working out fine, just hope it lasts longer than the last brand I was using,
Written by a customer while visiting Filterbuy