Customer reviews from Filterbuy
Filterbuy - 21x21x1 MERV 13 Smoke & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (1-Pack) - Blue
Average customer rating
4.6
(3,423 Reviews)
Rating breakdown 3,423 reviews
5 Stars
2,717
4 Stars
302
3 Stars
185
2 Stars
73
1 Star
146
Customer Reviews for Filterbuy - 21x21x1 MERV 13 Smoke & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (1-Pack) - Blue
Customer Rating
5
New filters
on June 12, 2025
Posted by: Anonymous
We buy our filters from you every year, we get outstanding service and the filters are the best for our home. . . thank you. . .
Written by a customer while visiting Filterbuy
Customer Rating
5
Air filter
on June 11, 2025
Posted by: Anonymous
First time using them well see in 90 days how they hold up
Written by a customer while visiting Filterbuy
Customer Rating
5
20x30x1 Merv13 filter
on June 11, 2025
Posted by: Mattie B.
Great product. So glad I can buy in bundle. Makes air in house more efficient.
Written by a customer while visiting Filterbuy
Customer Rating
5
Air Filters
on June 9, 2025
Posted by: Anonymous
These Filters are great. I would definitely buy them again.
Written by a customer while visiting Filterbuy
Customer Rating
5
Filters
on June 8, 2025
Posted by: Anonymous
These were absolutely the perfect custom size, impossible to get anywhere else
Written by a customer while visiting Filterbuy
Customer Rating
5
Worked for me. Haven't had
on June 8, 2025
Posted by: Mary-Glen B.
Worked for me. Haven't had it long enough to know how it performs in the long run.
Written by a customer while visiting Filterbuy
Customer Rating
5
Double order
on June 8, 2025
Posted by: Anonymous
just received my second annual order. got a whole year of clean air
Written by a customer while visiting Filterbuy
Customer Rating
4
Merv 13
on June 6, 2025
Posted by: Dotti O.
I didn't know they would be blue in color. , looks a bit tacky in my living space but if it does the job, I will accept it
Written by a customer while visiting Filterbuy