Customer reviews from Filterbuy
Filterbuy - 21x21.5x1 MERV 8 Dust & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (12-Pack) - Silver
Average customer rating
4.7
(5,910 Reviews)
Rating breakdown 5,910 reviews
5 Stars
4,904
4 Stars
498
3 Stars
213
2 Stars
113
1 Star
182
Customer Reviews for Filterbuy - 21x21.5x1 MERV 8 Dust & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (12-Pack) - Silver
Customer Rating
5
Excellent quality
on September 6, 2026
Posted by: Customer
I bought these filters for my new condo and used one during a remodel, cleaned the air and protected the AC.
Written by a customer while visiting Filterbuy
Customer Rating
5
Great selection with great prices.
on September 5, 2026
Posted by: Customer
They have a huge selection of sizes, even hard to find ones. And great prices too. I have used them for several years for a difficult size to find.
Written by a customer while visiting Filterbuy
Customer Rating
5
I canceled my suspension should
on September 4, 2026
Posted by: Customer
I canceled my suspension should not have to pay for last shipment
Written by a customer while visiting Filterbuy
Customer Rating
5
Great buy, Excellent filters!!
on September 4, 2026
Posted by: Customer
The big box stores don't sell as cheap and these filters are great! Easy to buy offline and delivery straight to your door. Always have on hand to replace every month or so. Great service and efficient.
Written by a customer while visiting Filterbuy
Customer Rating
5
We have used these filters
on September 3, 2026
Posted by: Customer
We have used these filters for years now. quality is wonderful. They ship for free and very fast. They fit well in our air return.
Written by a customer while visiting Filterbuy
Customer Rating
5
Totally pleased
on September 3, 2026
Posted by: Customer
I have used Filterbuy for quite a while now and have found the filters to perform flawlessly.
Written by a customer while visiting Filterbuy
Customer Rating
5
Easy to purchase on your
on September 3, 2026
Posted by: Customer
Easy to purchase on your site and very inexpensive!
Written by a customer while visiting Filterbuy
Customer Rating
5
Great hvac filter
on September 1, 2026
Posted by: Customer
The best ac filter made today. I’ve tried many in the past years but by far Filterbuy filters are the best for your money and best quality filter.
Written by a customer while visiting Filterbuy