Customer reviews from Filterbuy
Filterbuy - 25x28x4 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (12-Pack) - Gold
Average customer rating
4
(1,156 Reviews)
Rating breakdown 1,156 reviews
5 Stars
668
4 Stars
149
3 Stars
120
2 Stars
91
1 Star
128
Customer Reviews for Filterbuy - 25x28x4 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (12-Pack) - Gold
Customer Rating
5
Satisfied Customer
on September 24, 2026
Posted by: Customer
I have been purchasing these filters for several years. The cost is reasonable and I cannot always find this size in the stores. When I do, they are very expensive for one. They work very well in our furnace.
Written by a customer while visiting Filterbuy
Customer Rating
3
20 x 20 x4"
on September 23, 2026
Posted by: Customer
The correct 3M replacement for my Rudd AC unit is 19"7/8 x 19"7/8 X 4" 9/16 which 3M labels as 20" x 20" x 4" This is my perfect exact fit.
Written by a customer while visiting Filterbuy
Customer Rating
1
The actual size did not
on September 20, 2026
Posted by: Customer
The actual size did not fit inside the HVAC filter opening.
Written by a customer while visiting Filterbuy
Customer Rating
4
2nd time. . Will first us
on September 16, 2026
Posted by: Customer
2nd time. . Will first us product in October when I change the filter. .
Written by a customer while visiting Filterbuy
Customer Rating
5
Great filters
on September 15, 2026
Posted by: Customer
Theses filters provide exactly the right filtration my house needs and they appropriately priced.
Written by a customer while visiting Filterbuy
Customer Rating
1
Check actual size of your filter
on September 8, 2026
Posted by: Customer
Too small. Ordered 16x25x4. I did not know there is an actual size of the filter. Of course the actual size is smaller than what I needed so the filter is not tight in the slot. Not sure if it matters but do not like how it is cocked in the filter housing.
Written by a customer while visiting Filterbuy
Customer Rating
5
I am not ready for
on September 3, 2026
Posted by: Customer
I am not ready for any more filters at this time. I will keep the ones you sent this Week,do not send me any more, I will notify you when I am ready for more, thank you.
Written by a customer while visiting Filterbuy
Customer Rating
5
Always satisfied
on September 2, 2026
Posted by: Customer
Been buying from them for years. Great product great service
Written by a customer while visiting Filterbuy