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
5
Great price and fit perfectly.
on April 29, 2026
Posted by: Customer
Great price and fit perfectly. Good quality and looks great.
Written by a customer while visiting Filterbuy
Customer Rating
3
Wrong size 4x20x25
on April 29, 2026
Posted by: Customer
Quick service but the actual dimensions are wrong. The fit was incorrect, too small. Had to stop service and go back to the big box store filters.
Written by a customer while visiting Filterbuy
Customer Rating
1
I bought 3 12X36 inch
on April 28, 2026
Posted by: Customer
I bought 3 12X36 inch filters that did not fit the intake.
Written by a customer while visiting Filterbuy
Customer Rating
1
Good Filter just is not 20x20x4
on April 28, 2026
Posted by: Customer
Purchased these filters to replace the original Honeywell filters and these are significantly smaller. They are not close to 20x20x4. They just flop around in the filter tray. These will not work for my application.
Written by a customer while visiting Filterbuy
Customer Rating
5
They are perfect . Easy
on April 27, 2026
Posted by: Customer
They are perfect . Easy to install and great price
Written by a customer while visiting Filterbuy
Customer Rating
5
right size filters
on April 27, 2026
Posted by: Customer
You are the only ones I found that sells th 22x24 filters, I have not found them in any stores that I looked and they are the only ones that fit right.
Written by a customer while visiting Filterbuy
Customer Rating
5
Ordered these to have extras
on April 27, 2026
Posted by: Customer
Ordered these to have extras on hand. We have ordered these for several years and they have served us well.
Written by a customer while visiting Filterbuy
Customer Rating
5
Great product. Great business to
on April 27, 2026
Posted by: Customer
Great product. Great business to work with. Filterbuy has made it easy and cost effective to maintain our HVAC filters.
Written by a customer while visiting Filterbuy