Customer reviews from Filterbuy
Filterbuy - 21.5x21.5x1 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (2-Pack) - Gold
Average customer rating
4.6
(3,949 Reviews)
Rating breakdown 3,949 reviews
5 Stars
3,135
4 Stars
393
3 Stars
198
2 Stars
89
1 Star
134
Customer Reviews for Filterbuy - 21.5x21.5x1 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (2-Pack) - Gold
Customer Rating
2
Quality is great but measurements
on August 26, 2025
Posted by: Anonymous
Quality is great but measurements and fit is not good
Written by a customer while visiting Filterbuy
Customer Rating
3
Overall size is not accurate
on August 26, 2025
Posted by: Anonymous
Filter quality is great but the size is not accurate should be half a millimeter smaller in all of the directions. Then you want to install that filter that doesn't matter which size you have to damage the filter to fit. I ordered 12 of them in two types six of each ivish I ordered just one
Written by a customer while visiting Filterbuy
Customer Rating
5
Excellent design, quality and cleaning.
on August 26, 2025
Posted by: Anne-Marie F.
Excellent design, quality and cleaning. Very affordable!
Written by a customer while visiting Filterbuy
Customer Rating
5
Great company
on August 26, 2025
Posted by: Anonymous
These measurements were custom made and they fit perfect. The size is now saved and I can keep ordering them as needed. I have used them for quite a few years.
Written by a customer while visiting Filterbuy
Customer Rating
5
Best convenient filters
on August 26, 2025
Posted by: Anonymous
I have a 3 zone system that requires 4 different filters and found these to be the most cost effective.
Written by a customer while visiting Filterbuy
Customer Rating
5
Filters
on August 26, 2025
Posted by: Anonymous
Thay are great filters. They do the job and are priced reasonably.
Written by a customer while visiting Filterbuy
Customer Rating
3
Filter good, color is noticeable.
on August 26, 2025
Posted by: Anonymous
This filter is for my air intake. The filters work great but the orange and green colors are noticeable in my ceiling. My old ones weee white. Never thought about the color until I put this in. .
Written by a customer while visiting Filterbuy
Customer Rating
5
Da best loyal customer since
on August 26, 2025
Posted by: Kevin M.
Da best loyal customer since 3 years Cleans the Chattsworth Porter Ranch air right nicely:+1:
Written by a customer while visiting Filterbuy