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
Prompt service
on March 7, 2026
Posted by: Anonymous
Good product, good price. Will definitely use them again.
Written by a customer while visiting Filterbuy
Customer Rating
5
So far, the filters are
on March 7, 2026
Posted by: Anonymous
So far, the filters are working like they are supposed to.
Written by a customer while visiting Filterbuy
Customer Rating
4
Great product, great price. House
on March 7, 2026
Posted by: Anonymous
Great product, great price. House has minimal dust. Very happy.
Written by a customer while visiting Filterbuy
Customer Rating
1
Fit
on March 7, 2026
Posted by: Anonymous
Fit. I ordered 20 by 25 by 4. Cheaply made Do not fit well even though I ordered the right size
Written by a customer while visiting Filterbuy
Customer Rating
4
We have allergies. If we
on March 7, 2026
Posted by: Anonymous
We have allergies. If we start sneezing, it usually means I forgot to change the filter!!! Our filter seems to work very well at capturing pollen, dust, etc.
Written by a customer while visiting Filterbuy
Customer Rating
5
Great product
on March 6, 2026
Posted by: Anonymous
Oh, this company has great products. Even better storage service. I made a mistake and ordered the wrong size. They asked me a couple questions. And then replaced the filters with the correct size. Told me to donate the other ones and gave me the price difference. As a refund. I will be buying my filters from them from now on.
Written by a customer while visiting Filterbuy
Customer Rating
5
Home HVAC System
on March 6, 2026
Posted by: Anonymous
The filters provide excellent filtration and meet all stated performance data.
Written by a customer while visiting Filterbuy
Customer Rating
3
MERV 11 PLEATED FILTERS
on March 6, 2026
Posted by: Anonymous
I've been told these filters are only good for about 30 days by my HVAC company.
Written by a customer while visiting Filterbuy