Customer reviews from Filterbuy
Filterbuy - 20x21x1 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (2-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 - 20x21x1 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (2-Pack) - Gold
Customer Rating
5
Excellent quality filters, and a perfect fit!
on July 27, 2025
Posted by: Anonymous
Your filters are very well made, we have stopped sneezing since we upgraded the higher MERV grade! Thanks for a producing a great product!
Written by a customer while visiting Filterbuy
Customer Rating
5
Reliable Company + Great Products
on July 27, 2025
Posted by: Morgan T.
Very pleased with this company and have placed many orders with them.
Written by a customer while visiting Filterbuy
Customer Rating
5
The filters that I bought
on July 27, 2025
Posted by: Anonymous
The filters that I bought from your company are working well for me thank you so much I will buy more when needed
Written by a customer while visiting Filterbuy
Customer Rating
5
THANKS AGAIN for your quick
on July 26, 2025
Posted by: Anonymous
THANKS AGAIN for your quick response. The filters are a perfect fit and price is great for the full package. Will AGAIN reorder them from you. :+1:
Written by a customer while visiting Filterbuy
Customer Rating
5
Filter Purchase
on July 26, 2025
Posted by: Diane B.
Filters were reasonable when you buy a quantity. They came within a few days. Great service.
Written by a customer while visiting Filterbuy
Customer Rating
5
Great!
on July 26, 2025
Posted by: Anonymous
As a first time filter buyer I was a little skeptical. I ordered a custom size and received something else. But to my surprise it fit perfectly! Plus it works great! I will definitely be reordering!
Written by a customer while visiting Filterbuy
Customer Rating
5
Haven't used the filter yet
on July 25, 2025
Posted by: Erika B.
Haven't used the filter yet so I can't rate the item
Written by a customer while visiting Filterbuy
Customer Rating
2
Manufacturing off by 1/8+ inch
on July 25, 2025
Posted by: Anonymous
Manufacturing - the 24" side of the filter measures 24 1/8 inches due to the frame note being attached evenly along the edge. The specifications on the website showed the filter size as 23 7/8 inches, which would have fit perfectly. Now, I have to bend / crinkle the filter to fit it into the opening.
Written by a customer while visiting Filterbuy