Customer reviews from Filterbuy
Filterbuy - 21.5x21.5x1 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (3-Pack) - Gold
Average customer rating
4.6
(3,950 Reviews)
Rating breakdown 3,950 reviews
5 Stars
3,136
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 (3-Pack) - Gold
Customer Rating
5
Satisfied
on July 1, 2025
Posted by: Anonymous
Pleased to get a filter that is rated for dander and dust at a reasonable price per filter
Written by a customer while visiting Filterbuy
Customer Rating
5
Its the size that I
on July 1, 2025
Posted by: Elsierene S.
Its the size that I need, and its the right filter for my familys air quality. Im glad I was able to find Filterbuy, now I dont have to worry about finding the right filter for my home.
Written by a customer while visiting Filterbuy
Customer Rating
5
Merv 11 pleated air filter
on June 30, 2025
Posted by: Anonymous
I really like and could tell immediately the air filtering through
Written by a customer while visiting Filterbuy
Customer Rating
2
When I measure this product,
on June 29, 2025
Posted by: Anonymous
When I measure this product, it is 15 1/2 x 19 1/2 x 3/4. Why is that? I can hear it dropping each time my fan stops running.
Written by a customer while visiting Filterbuy
Customer Rating
2
loose fit
on June 29, 2025
Posted by: Anonymous
fit is loose within air intake. As compared to 3M MERV 11.
Written by a customer while visiting Filterbuy
Customer Rating
2
loose fit
on June 29, 2025
Posted by: Anonymous
fit is loose within air intake. As compared to 3M MERV 11.
Written by a customer while visiting Filterbuy
Customer Rating
2
fit is loose
on June 29, 2025
Posted by: Anonymous
All of the 4 filters I purchased (20x20x1, 16x29x1, 14x20x1) are loose in the grill compared to the 3M MERV 11. When the air turns on you can hear the filters slam into the frames. Really annoying while sleeping. If I continue to use FilterBuy Ill need to put a door seal around the edges.
Written by a customer while visiting Filterbuy
Customer Rating
5
It working good
on June 29, 2025
Posted by: Romana A.
I'm not blowing my nose constantly like before I put the filter in
Written by a customer while visiting Filterbuy