Customer reviews from Filterbuy
Filterbuy - 9x30x1 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (1-Pack) - Gold
Average customer rating
4.6
(3,945 Reviews)
Rating breakdown 3,945 reviews
5 Stars
3,131
4 Stars
393
3 Stars
198
2 Stars
89
1 Star
134
Customer Reviews for Filterbuy - 9x30x1 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (1-Pack) - Gold
Customer Rating
5
The quality of the cardboard
on September 3, 2026
Posted by: Customer
The quality of the cardboard used to stabilize the filter is far above anything I have bought at the big box stores. .
I used to be in the HVAC industry so believe me when I say the cost is very reasonable.
I will definitely be a customer for life. Thanks for making such a quality product. .
Written by a customer while visiting Filterbuy
Customer Rating
5
Highly recommend
on September 1, 2026
Posted by: Customer
Great product and service is fantastic! I’m on the subscription plan. The plan is flexible, order earlier or delay next order.
Written by a customer while visiting Filterbuy
Customer Rating
3
While I am sure these
on September 1, 2026
Posted by: Customer
While I am sure these are good filters, I was very disappointed that the 14x20x1 filters were only 13 1/2, 19 1/2, 3/4. They are too small for the opening. I won’t buy them again.
Written by a customer while visiting Filterbuy
Customer Rating
5
Will order again
on August 30, 2026
Posted by: Customer
As described, been working fine. Really can’t beat the price.
Written by a customer while visiting Filterbuy
Customer Rating
2
Filters were squished and look off
on August 30, 2026
Posted by: Customer
As above. Not pleased.
Written by a customer while visiting Filterbuy
Customer Rating
4
Border could be stiffer so
on August 29, 2026
Posted by: Customer
Border could be stiffer so it does not flex so much
Written by a customer while visiting Filterbuy
Customer Rating
5
I was very impressed with
on August 29, 2026
Posted by: Customer
I was very impressed with the quality of the filters. And the size was a perfect fit. I will definitely buy these again I got in like 3 days.
Written by a customer while visiting Filterbuy
Customer Rating
5
Filters seem to work fine
on August 27, 2026
Posted by: Customer
Filters seem to work fine have to change more often tho when furnance is used but it’s ok I still like the product.
Written by a customer while visiting Filterbuy