Customer reviews from Filterbuy
Filterbuy - 21.5x23.5x1 MERV 8 Dust & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (1-Pack) - Silver
Average customer rating
4.7
(5,923 Reviews)
Rating breakdown 5,923 reviews
5 Stars
4,915
4 Stars
500
3 Stars
213
2 Stars
113
1 Star
182
Customer Reviews for Filterbuy - 21.5x23.5x1 MERV 8 Dust & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (1-Pack) - Silver
Customer Rating
5
We decided to filter at
on August 16, 2026
Posted by: Customer
We decided to filter at the cold air returns rather that at the air handler. The goal was to reduce the amount of dust in the house. The 12x12x1 filters fit the returns perfectly. We've noticed no difference in air flow. It's too early to determine if there is less dust. The filters are of high quality. If the change we made in filter location works the way we want, we'll definitely be purchasing more from Filter Buy.
Written by a customer while visiting Filterbuy
Customer Rating
5
This is the second year
on August 15, 2026
Posted by: Customer
This is the second year we have ordered uour filters. They fit great. Very pleased with the products.
Written by a customer while visiting Filterbuy
Customer Rating
5
Great filters!
on August 13, 2026
Posted by: Customer
Any size, good quality shipped to your door. I bought 8, the more you buy the better price you get. So I’m set for a year!
Written by a customer while visiting Filterbuy
Customer Rating
1
Poor quality
on August 13, 2026
Posted by: Customer
These filters are not up to spec. I purchased 18X24x1 filters and noticed that they are slightly smaller than store bought filters. Sure enough, that small size difference was enough to cause my air handler to “inhale” the filter. Super disappointing.
Written by a customer while visiting Filterbuy
Customer Rating
5
Quick and easy
on August 12, 2026
Posted by: Customer
I would definitely order from them again, it was quick and easy process.
Written by a customer while visiting Filterbuy
Customer Rating
5
Highly recommend
on August 12, 2026
Posted by: Customer
The filters are great and it's so fast and easy,I wouldn't ever use another company, get your filters!!
Written by a customer while visiting Filterbuy
Customer Rating
4
The filters are great but
on August 11, 2026
Posted by: Customer
The filters are great but I wish to stop my subscription. I have several which will last for a while. I will reconnect when I need more.
Written by a customer while visiting Filterbuy
Customer Rating
5
Decided to filter the cold
on August 11, 2026
Posted by: Customer
Decided to filter the cold air returns rather that using a large filter in the air handler. These fit the returns in the bedrooms perfectly. The qulity is excellent. Our goal was to eliminate as much dust as possible. So far, so good.
Written by a customer while visiting Filterbuy