Customer reviews from Filterbuy
Filterbuy - 20x21x1 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (2-Pack) - Gold
Average customer rating
4.6
(3,948 Reviews)
Rating breakdown 3,948 reviews
5 Stars
3,134
4 Stars
393
3 Stars
198
2 Stars
89
1 Star
134
Customer Reviews for Filterbuy - 20x21x1 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (2-Pack) - Gold
Customer Rating
5
MERV 11 FILTER
on September 9, 2026
Posted by: Customer
More sturdy tan other bands. Immediately noticed more dog hair mivement after changing filter. . . the other was only a month in use.
Written by a customer while visiting Filterbuy
Customer Rating
5
This is my first time
on September 8, 2026
Posted by: Customer
This is my first time buying and using these filters. . they are very good easy to handle, long lasting and they do a great job. .
Written by a customer while visiting Filterbuy
Customer Rating
5
Ouch
on September 5, 2026
Posted by: Customer
While the price of EVERYTHING is climbing, at least I can get high quality filters at a very competitive price. I've been happily using these filters for years.
Written by a customer while visiting Filterbuy
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