Customer reviews from Filterbuy
Filterbuy - 21.5x21.5x1 MERV 8 Dust & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (2-Pack) - Silver
Average customer rating
4.7
(5,944 Reviews)
Rating breakdown 5,944 reviews
5 Stars
4,935
4 Stars
500
3 Stars
213
2 Stars
114
1 Star
182
Customer Reviews for Filterbuy - 21.5x21.5x1 MERV 8 Dust & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (2-Pack) - Silver
Customer Rating
5
Great filters
on October 4, 2026
Posted by: Customer
I tried these after a retailer stopped carrying the brand I used, so I was surprised how great they worked and I change every 4-6 weeks, living in Florida A\C runs a lot. Great product give it a try!
Written by a customer while visiting Filterbuy
Customer Rating
4
16X 20 furnace filters
on October 2, 2026
Posted by: Customer
The filters are nice, had no trouble getting them in my furnace compartment. Slid right in, others I’ve used had problems getting them to fit. It was a struggle. Like these filters a lot, so far.
Written by a customer while visiting Filterbuy
Customer Rating
5
Odd size
on October 2, 2026
Posted by: Customer
They have the size filter I need that I could not find anywhere in town
Written by a customer while visiting Filterbuy
Customer Rating
5
Great air filters!
on October 1, 2026
Posted by: Customer
These air filters do a wonderful job of keeping dust and other particles out of my system! I’ve been thoroughly pleased with their performance.
Written by a customer while visiting Filterbuy
Customer Rating
5
Simple, fast and inexpensive
on September 29, 2026
Posted by: Customer
Have used them for years at my house. I love it because I don't have to think about when to change my filters. So naturally I wanted to do the same for my office.
Written by a customer while visiting Filterbuy
Customer Rating
5
I haven’t used one yet,
on September 28, 2026
Posted by: Customer
I haven’t used one yet, but I was very very happy with appearance and price… definitely a lifelong customer
Written by a customer while visiting Filterbuy
Customer Rating
5
Very happy
on September 28, 2026
Posted by: Customer
I am always happy with the quality of the service and the product from Filterbuy. I highly recommend them.
Written by a customer while visiting Filterbuy
Customer Rating
5
Easy
on September 28, 2026
Posted by: Customer
Perfect fit, easy to purchase, received as expected
Written by a customer while visiting Filterbuy