Customer reviews from Filterbuy
Filterbuy - 20x20x4 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (1-Pack) - Gold
Average customer rating
3.9
(128 Reviews)
Rating breakdown 128 reviews
5 Stars
69
4 Stars
15
3 Stars
15
2 Stars
17
1 Star
12
Customer Reviews for Filterbuy - 20x20x4 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (1-Pack) - Gold
Customer Rating
5
Prefect fit!
on June 22, 2025
Posted by: Leah C.
Ive had lots of trouble finding a filter that actually fits in my unit. While they all list the same general dimensions, they are not all the same. This one slid right in! I will be back in a few years to buy more from you!
Written by a customer while visiting Filterbuy
Customer Rating
1
NOT the size as advertised!
on June 16, 2025
Posted by: Allison E.
Very disappointed in this purchase. The filters are advertised as 20x20x4 but are NOT that size, they are 19. 3x19. 3x3. 25. These don't fit at all, entirely too small. Will not order again.
Written by a customer while visiting Filterbuy
Customer Rating
2
Small
on April 6, 2025
Posted by: Anonymous
I bought the right size but it did not fit snuggly in my Honeywell air filter. I will go back to the Honeywell brand.
Written by a customer while visiting Filterbuy
Customer Rating
2
Filter too small for the Housing
on March 24, 2025
Posted by: Anonymous
The 20x20x4 inch Filter was ACTUALLY 19 1/2 x 19 1/2 x 3 5/8, which is TOO SMALL for the OEM Housing. The FilterBuy filter is smaller by 7/16 x 4/16 x 3/4 inch! In the future I will only buy OEM filters.
Written by a customer while visiting Filterbuy
Customer Rating
3
I reserve!
on March 11, 2025
Posted by: Anonymous
I haven't used the filters yet. Purchased them to have them on hand when it is time to change my filters. Will be glad to tell you more at that time.
Written by a customer while visiting Filterbuy
Customer Rating
3
Improper fitment
on March 10, 2025
Posted by: Anonymous
Filters are 1/2 inch too narrow. They barely grip the lip to keep them in place
Written by a customer while visiting Filterbuy
Customer Rating
2
I expected better quality
on March 8, 2025
Posted by: Anonymous
For something fabricated in the USA I expected better quality. Filter dimensions are well undersized compared to other brands with very poor pleating
Written by a customer while visiting Filterbuy
Customer Rating
4
The filters look fine but
on January 28, 2025
Posted by: Anonymous
The filters look fine but not crazy about the way the filter rows are out of alignment where some rows are glued together with no space to filter through.
Written by a customer while visiting Filterbuy