Customer reviews from Filterbuy
Filterbuy - 9x30x1 MERV 13 Smoke & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (12-Pack) - Blue
Average customer rating
4.6
(3,442 Reviews)
Rating breakdown 3,442 reviews
5 Stars
2,730
4 Stars
306
3 Stars
187
2 Stars
73
1 Star
146
Customer Reviews for Filterbuy - 9x30x1 MERV 13 Smoke & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (12-Pack) - Blue
Customer Rating
4
Actual Size
on September 23, 2026
Posted by: Customer
After many years purchasing the same box of filters I got just what I asked for - 24X30. Somehow I missed the small print: 24x30 (actually 23 1/2 x 29 1/2).
My fault. This company has been great to deal with, and I highly recommend them on quality and value
My fault. This company has been great to deal with, and I highly recommend them on quality and value
Written by a customer while visiting Filterbuy
Customer Rating
5
Merv 13 filters
on September 22, 2026
Posted by: Customer
I just upgraded my filters, I have been using Merv 11 with no problem. I am confident that the upgrade will be successful
Written by a customer while visiting Filterbuy
Customer Rating
5
They really clean the air.
on September 21, 2026
Posted by: Customer
They really clean the air. In AZ nothingbut dust. Filters inhales most of the dust. I would recommend buying them.
Written by a customer while visiting Filterbuy
Customer Rating
5
Good quality of filters. I
on September 21, 2026
Posted by: Customer
Good quality of filters. I strongly recommend them to everyone.
Written by a customer while visiting Filterbuy
Customer Rating
5
Very happy with my purchase
on September 21, 2026
Posted by: Customer
These fliters seem to be a much higher quality than those I have purchased in the past. I will reorder when I run out.
Written by a customer while visiting Filterbuy
Customer Rating
5
Filterbuy
on September 20, 2026
Posted by: Customer
Product was as good as anticipated. They work wonderful!
Written by a customer while visiting Filterbuy
Customer Rating
1
Too Small
on September 20, 2026
Posted by: Customer
The filters do not fit and fall out of the return onto the grate when air is not moving.
Written by a customer while visiting Filterbuy
Customer Rating
5
Expensive
on September 17, 2026
Posted by: Customer
After my purchase, I found them less expensive pn a website
Written by a customer while visiting Filterbuy