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
(7,981 Reviews)
Rating breakdown 7,981 reviews
5 Stars
6,413
4 Stars
704
3 Stars
346
2 Stars
212
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
Have used FilterBuy for the
on April 12, 2026
Posted by: Customer
Have used FilterBuy for the past few years. The filters are excellent and well made . Service has been outstanding. I would highly recommend this company.
Written by a customer while visiting Filterbuy
Customer Rating
5
Rifle through the reviews… pick
on April 12, 2026
Posted by: Customer
Rifle through the reviews… pick the one that speaks to you… what he said. I’m lazy
Written by a customer while visiting Filterbuy
Customer Rating
1
18 x18 x 1 filter
on April 12, 2026
Posted by: Customer
Not the size it says to be had to crush small amount to fit. I did not measure your filter. The filter that came in ac said 18 x 18 x 1 .
Written by a customer while visiting Filterbuy
Customer Rating
5
So far, great results!
on April 10, 2026
Posted by: Customer
Very good filter for my 5 Ton Trane Handler unit!!
Written by a customer while visiting Filterbuy
Customer Rating
4
Missed by a mile first
on April 10, 2026
Posted by: Customer
Missed by a mile first time. Perfect on second. I’ll be back
Written by a customer while visiting Filterbuy
Customer Rating
5
Good product
on April 9, 2026
Posted by: Customer
Have used them for several years and they work well
Written by a customer while visiting Filterbuy
Customer Rating
5
Great company! Always reliable and
on April 9, 2026
Posted by: Customer
Great company! Always reliable and so easy to order and they arrive quickly. Perfect fit! I will continue to use them.
Written by a customer while visiting Filterbuy
Customer Rating
5
Right sizes and easy to
on April 9, 2026
Posted by: Customer
Right sizes and easy to fit in return register without hassle.
Written by a customer while visiting Filterbuy