Customer reviews from Filterbuy
Filterbuy - 15x20x4 MERV 13 Smoke & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (5-Pack) - Blue
Average customer rating
4.4
(5,900 Reviews)
Rating breakdown 5,900 reviews
5 Stars
4,402
4 Stars
555
3 Stars
405
2 Stars
201
1 Star
337
Customer Reviews for Filterbuy - 15x20x4 MERV 13 Smoke & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (5-Pack) - Blue
Customer Rating
3
Too small
on June 21, 2026
Posted by: Customer
I ordered the size I needed and the 20x25 is a half in too small LxW. In order to get the exact size I need I have to special order then and it's 169. 00 for 6 of them.
Written by a customer while visiting Filterbuy
Customer Rating
5
Grate product
on June 21, 2026
Posted by: Customer
I've used this before in an older home. Now we are in a new construction apartment and works wonderfully.
Written by a customer while visiting Filterbuy
Customer Rating
4
I’m very happy to see
on June 20, 2026
Posted by: Customer
I’m very happy to see all 3 filters now come in one box. The price increase was quite a shocker. Not sure if I will continue with on line purchase or buy local
Written by a customer while visiting Filterbuy
Customer Rating
5
Frenchko
on June 19, 2026
Posted by: Customer
Love the filters high quickly and a very fair price
Written by a customer while visiting Filterbuy
Customer Rating
5
Cleaner air
on June 18, 2026
Posted by: Customer
The air quality in Phoenix valley is dusty and polluted. So far, after three weeks, inside air quality seems to be better. Time will tell.
Written by a customer while visiting Filterbuy
Customer Rating
5
Air filter Filterbuy
on June 17, 2026
Posted by: Customer
Very effective filter for my air conditioner traps a lot of my pet hair and the flow of the cooling air is smooth.
Written by a customer while visiting Filterbuy
Customer Rating
5
Do not send any more
on June 17, 2026
Posted by: Customer
Do not send any more filters. We will call when we need them
Written by a customer while visiting Filterbuy
Customer Rating
5
I know they are not
on June 17, 2026
Posted by: Customer
I know they are not 3M brand, however, they seem to work just well . . . . . . . . the size is perfect and they fit well. . . . they are a quality item and I know that because there is a smoker in my home and they help greatly clearing the house of smoke and it's awful left behind odor!
Written by a customer while visiting Filterbuy