Customer reviews from Filterbuy
Filterbuy - 23.5x23.5x1 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (1-Pack) - Gold
Average customer rating
4.6
(3,948 Reviews)
Rating breakdown 3,948 reviews
5 Stars
3,134
4 Stars
393
3 Stars
198
2 Stars
89
1 Star
134
Customer Reviews for Filterbuy - 23.5x23.5x1 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (1-Pack) - Gold
Customer Rating
5
Always great
on August 2, 2026
Posted by: Customer
I need some odd sizes -- they have them. And I can get roughly twice as many for the same price I paid locally. But don't let Filterbuy know that.
Written by a customer while visiting Filterbuy
Customer Rating
5
This is the only place
on July 31, 2026
Posted by: Customer
This is the only place I could find this size filter for my furnace. I prefer these to the washable one that I have.
Written by a customer while visiting Filterbuy
Customer Rating
3
Filter size 20x24
on July 30, 2026
Posted by: Customer
Filters are fine but they are undercut and allow air to bypass the filter. They need to be appropriately 1/4” bigger all around to fit properly.
Written by a customer while visiting Filterbuy
Customer Rating
5
Very Good Filters
on July 29, 2026
Posted by: Customer
This is not the first time I have bought these filters. I thinks they are as good as any that I buy locally and cost a lot less, so I can buy more and keep a good clean filter in my HVAC system.
Written by a customer while visiting Filterbuy
Customer Rating
1
Bent
on July 27, 2026
Posted by: Customer
3 of the four filters were bent and some the cardboard housing was torn. Wrapped in plastic but no other packing material. Not your normal customer svc
Written by a customer while visiting Filterbuy
Customer Rating
1
To may emails.
on July 23, 2026
Posted by: Customer
The product is fine. The number of emails that you send is way to much.
Written by a customer while visiting Filterbuy
Customer Rating
5
Excellent
on July 23, 2026
Posted by: Customer
They are simply the best filters you can buy. They're reasonably priced and a great quality product.
Written by a customer while visiting Filterbuy
Customer Rating
5
Great quality
on July 22, 2026
Posted by: Customer
I have been using these filters for years. Great quality and reasonably priced.
Written by a customer while visiting Filterbuy