Customer reviews from Filterbuy
Filterbuy - 21.5x21.5x1 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (2-Pack) - Gold
Average customer rating
4.6
(3,949 Reviews)
Rating breakdown 3,949 reviews
5 Stars
3,135
4 Stars
393
3 Stars
198
2 Stars
89
1 Star
134
Customer Reviews for Filterbuy - 21.5x21.5x1 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (2-Pack) - Gold
Customer Rating
5
Good filters
on February 17, 2026
Posted by: Anonymous
Have to order this size online but I get a good price and stock up
Written by a customer while visiting Filterbuy
Customer Rating
1
The density is too high
on February 17, 2026
Posted by: Anonymous
The core is so dense that i think its unhealthy for the hvac unit
Written by a customer while visiting Filterbuy
Customer Rating
3
It's ok for the price
on February 17, 2026
Posted by: Anonymous
The filter feels too thick like not breathable center .You get what you pay for
Written by a customer while visiting Filterbuy
Customer Rating
5
Do not send any more
on February 16, 2026
Posted by: Anonymous
Do not send any more filters unless i request them .
Written by a customer while visiting Filterbuy
Customer Rating
5
I have been using Filter
on February 15, 2026
Posted by: Anonymous
I have been using Filter Buy furnace filters for 20 years. They are well made and priced right. I change them out every 30 days.
Written by a customer while visiting Filterbuy
Customer Rating
4
Filters
on February 15, 2026
Posted by: Anonymous
I just received these filters. New to me and need to assess how they trap dirt particles before I can truly rate them. They seem to be made very well and the cost is reasonable.
Written by a customer while visiting Filterbuy
Customer Rating
5
MERV 11 Pleated Filter
on February 14, 2026
Posted by: Anonymous
Does a great job, especially with pets in my house. I will purchase these again.
Written by a customer while visiting Filterbuy
Customer Rating
5
I have been using these
on February 13, 2026
Posted by: Anonymous
I have been using these filters for several years. They are great and the service is impeccable.
Written by a customer while visiting Filterbuy