Customer reviews from Filterbuy
Filterbuy - 21x21x4 MERV 13 Smoke & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (4-Pack) - Blue
Average customer rating
4.1
(1,155 Reviews)
Rating breakdown 1,155 reviews
5 Stars
716
4 Stars
109
3 Stars
127
2 Stars
88
1 Star
115
Customer Reviews for Filterbuy - 21x21x4 MERV 13 Smoke & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (4-Pack) - Blue
Customer Rating
5
Satisfaction
on August 28, 2025
Posted by: Anonymous
Great filters at a great price Very happy with Filterbuy
Written by a customer while visiting Filterbuy
Customer Rating
2
price is fine, but they
on August 27, 2025
Posted by: Anonymous
price is fine, but they should have been wrapped individually. One of my filters will now be sitting unwrapped until use. . . . . . . . . . . . collecting dust.
Written by a customer while visiting Filterbuy
Customer Rating
5
It Fit!
on August 26, 2025
Posted by: Anonymous
I know nothing about filters. I can only trust that what I bought is what you said it would be, because there is no way to determine effectiveness. All I can say is that I trust you. :)
Written by a customer while visiting Filterbuy
Customer Rating
4
Easy to install, once the
on August 25, 2025
Posted by: Anonymous
Easy to install, once the correct size was determined.
Written by a customer while visiting Filterbuy
Customer Rating
5
Merv 13 Filters
on August 24, 2025
Posted by: Don O.
Only filter I have owned for at least 4 years. Changing them now every 3 months.
Written by a customer while visiting Filterbuy
Customer Rating
5
Love that you got them
on August 15, 2025
Posted by: Melissa B.
Love that you got them to me fast!! Thank you, for being so great!!
Written by a customer while visiting Filterbuy
Customer Rating
5
Great product.
on August 12, 2025
Posted by: Anonymous
Great prices on Great products. Why buy anywhere else?
Written by a customer while visiting Filterbuy
Customer Rating
1
Not good as expected
on August 7, 2025
Posted by: Panagiotis T.
I purchased 6 MERV 13 filers which is type MERV 13 not original MERV 13 filters, very bad quality , they come ripped and bended some of them. Very bad experience
Written by a customer while visiting Filterbuy