Customer reviews from Filterbuy
Filterbuy - 20x20x4 MERV 8 Dust & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (6-Pack) - Silver
Average customer rating
4.6
(7,979 Reviews)
Rating breakdown 7,979 reviews
5 Stars
6,412
4 Stars
704
3 Stars
346
2 Stars
211
1 Star
306
Customer Reviews for Filterbuy - 20x20x4 MERV 8 Dust & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (6-Pack) - Silver
Customer Rating
1
It does not fit the
on July 31, 2026
Posted by: Customer
It does not fit the air vent & I have already made 2 complaints with regards to this & twice given my feedbacks.
Written by a customer while visiting Filterbuy
Customer Rating
5
Here they are!
on July 30, 2026
Posted by: Customer
What’s to review? They’re furnace filters. They remove dust and junk from the air that might otherwise get into your lungs. What else can I say?
Written by a customer while visiting Filterbuy
Customer Rating
1
Wrong size
on July 30, 2026
Posted by: Customer
The size is different from the website description. Super upset
Written by a customer while visiting Filterbuy
Customer Rating
5
I like the quality of
on July 30, 2026
Posted by: Customer
I like the quality of the product and have been using it for two years
Written by a customer while visiting Filterbuy
Customer Rating
5
Filters came in on time
on July 29, 2026
Posted by: Customer
Filters came in on time they fit very well making my air conditioner running a whole lot better thank you.
Written by a customer while visiting Filterbuy
Customer Rating
3
24x24x1
on July 29, 2026
Posted by: Customer
Filter quality seems good enough. I just installed one today, however the size isn't actually 24". It 23. 5 and is almost too small to fit the filter box properly allowing a small slit to be unfiltered.
Written by a customer while visiting Filterbuy
Customer Rating
4
Filters
on July 28, 2026
Posted by: Customer
Filters work fine. They’re basic and do the job. I do want call out that the website made me think I would receive them in 2 days but that did not end up being true.
Written by a customer while visiting Filterbuy
Customer Rating
4
Unlike the hardware store, my size is always in stock
on July 28, 2026
Posted by: Customer
I've gone to my local hardware store on multiple occasions to find my size sold out. So my filters are doing extra duty while I wait. This will eliminate that problem. I set a reminder in my calender to go down and change it out. Now FilterBuy needs to put a QR code in the box so when I pull the last one out I scan the code and click a reorder button.
Written by a customer while visiting Filterbuy