Customer reviews from Filterbuy
Filterbuy - 21.5x21.5x1 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (3-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 (3-Pack) - Gold
Customer Rating
5
Great filters.
on May 2, 2026
Posted by: Customer
Ordered filterbuy because I couldn't get the correct size in out town. Just made a second order and made a subscription. We have dogs and horses so you can imagine the dust. They do a fantastic job.
Written by a customer while visiting Filterbuy
Customer Rating
5
So far , so good.
on May 2, 2026
Posted by: Customer
So far , so good. Only used them a very short time
Written by a customer while visiting Filterbuy
Customer Rating
5
Just what we needed. Even
on April 30, 2026
Posted by: Customer
Just what we needed. Even came 2 days early. We have an older home with interesting measurements and they had it for a great price
Written by a customer while visiting Filterbuy
Customer Rating
5
Great filters
on April 29, 2026
Posted by: Customer
Best filters i have ever purchased, keeping my heat and AC running right.
Written by a customer while visiting Filterbuy
Customer Rating
5
Filterbuy was very easy to
on April 26, 2026
Posted by: Customer
Filterbuy was very easy to work with and think the filters will work great.
Written by a customer while visiting Filterbuy
Customer Rating
5
Fast Service
on April 24, 2026
Posted by: Customer
New user here. Have been a Filtrete user for years. Seemingly good quality, too soon to tell. Super fast service and good prices vs the brand names.
Written by a customer while visiting Filterbuy
Customer Rating
5
Product
on April 24, 2026
Posted by: Customer
Good looking filters, put one in. Unfortunately, my filter box had been crushed. Needless to say, the filters were a little flat.
Written by a customer while visiting Filterbuy
Customer Rating
5
Exceptional Furnace/AC Filters!
on April 23, 2026
Posted by: Customer
Absolutely the best filters with clear understanding of the filter rating. The price for the quality of the filters is exceptional.
Written by a customer while visiting Filterbuy