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
(3,949 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 - 20x21x1 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (2-Pack) - Gold
Customer Rating
5
16x24 filters
on June 5, 2026
Posted by: Customer
Love the filters and how well they work. More than anything I love that I can buy the odd-shaped filter on filterbuy in bulk. It's saving me a huge amount of money.
Written by a customer while visiting Filterbuy
Customer Rating
5
Filterbuy
on June 4, 2026
Posted by: Customer
I’ve been subscribing for a while now. This particular filter is in my bedroom and it visibly works well. I change mine every three months and appreciate the convenience.
Written by a customer while visiting Filterbuy
Customer Rating
5
Excellent company
on June 1, 2026
Posted by: Customer
I have been buying these filters for at least five years. I like that I can have them auto shipped to me. Highly recommend.
Written by a customer while visiting Filterbuy
Customer Rating
5
Great Purchase
on May 29, 2026
Posted by: Customer
I am very pleased with the product that I purchased from you all. Worth every cent.
Written by a customer while visiting Filterbuy
Customer Rating
5
The filters seem to be
on May 28, 2026
Posted by: Customer
The filters seem to be good. I really enjoy that, but I need to change the deliveries. I am sitting on top of five filters now.
Written by a customer while visiting Filterbuy
Customer Rating
5
Excellent Quality
on May 28, 2026
Posted by: Customer
I have been ordering these filters since our house was built (20 months). Very pleased and will continue to order.
Written by a customer while visiting Filterbuy
Customer Rating
5
Great buy!!!
on May 27, 2026
Posted by: Customer
Cannot beat the cost of these filters. . . and they DO THE JOB!
Written by a customer while visiting Filterbuy
Customer Rating
5
Excellent Filters
on May 27, 2026
Posted by: Customer
Work great. Change quarterly and have checked before first use each year, Techs say systems are very clean.
Written by a customer while visiting Filterbuy