Customer reviews from Filterbuy
Filterbuy - 21.5x21.5x1 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 - 21.5x21.5x1 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (2-Pack) - Gold
Customer Rating
5
Merv 11
on April 22, 2026
Posted by: Customer
After years of hvac filter changes the industry has established standard guidelines which allow choices for customers. Allows clean air at home or cost choice. Filterbuy provides both. By the way, very fast deliverya
Written by a customer while visiting Filterbuy
Customer Rating
5
Junk Catcher
on April 21, 2026
Posted by: Customer
Live near the coast so the air quality would seem pretty good. Don't run the HVAC much but when I do, the filter catches a lot of junk I don't to breath. We change the filter regularly by subsription so we save money on gas and I don't have to keep a log. Easy way to breath cleaner air.
Written by a customer while visiting Filterbuy
Customer Rating
5
On Time, Every Time
on April 21, 2026
Posted by: Customer
Filters received as scheduled and ready to install. I would recommend FilterBuy for all of your filter needs.
Written by a customer while visiting Filterbuy
Customer Rating
5
Great product
on April 21, 2026
Posted by: Customer
Even my maintenance person remarked how nice they were
Written by a customer while visiting Filterbuy
Customer Rating
5
Good quality
on April 20, 2026
Posted by: Customer
The prices have increased. Compare to store brands in future. I'm a satisfied customer.
Written by a customer while visiting Filterbuy
Customer Rating
2
Not tire sizing
on April 20, 2026
Posted by: Customer
We bought different 3 sizes of filters, was very disappointed that I had to shim the filters to make them stay and tape the gap so unfiltered air didn’t leak by. We had always used 3M filters that were always very tight, we will not be ordering them again, the sad thing is that we bought a 6 months supply!
Written by a customer while visiting Filterbuy
Customer Rating
5
Good filters
on April 19, 2026
Posted by: Customer
The filters were a very good choice and were priced right!
Written by a customer while visiting Filterbuy
Customer Rating
5
Glad I found them
on April 18, 2026
Posted by: Customer
I ordered the. 20x23x1. I have a hard time m e finding them my size is not easy to find. The price was reasonable. Thank you
Written by a customer while visiting Filterbuy