Customer reviews from Filterbuy
Filterbuy - 23.5x23.5x1 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (1-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 - 23.5x23.5x1 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (1-Pack) - Gold
Customer Rating
5
I'm a believer!!
on March 23, 2026
Posted by: Anonymous
I used to use a name brand filter for my furnace. Then I bought a new furnace and it took the same size filter(s). I bought a pair and after using them for 90 days believed that they did just as good a job at half the cost that I went online and bought a years worth. The savings was substantial for someone who's retired and on a fixed income. I've used the same filters for the past several years and see no need to pay double the price when these do just as good a job. They actually fit better in the space provided in the furnace ducting. I have a couple of cats - of course they shed but these filters take care of that problem as well. I just change them every 65-70 days now instead of 90 as recommended by the furnace manuf.
Written by a customer while visiting Filterbuy
Customer Rating
5
Very effective
on March 21, 2026
Posted by: Anonymous
I never have to worry if I have filters and they are great quality. Very effective.
Written by a customer while visiting Filterbuy
Customer Rating
5
So far so good. I
on March 20, 2026
Posted by: Anonymous
So far so good. I looks like the quality is as good as the more expensive brands.
Written by a customer while visiting Filterbuy
Customer Rating
5
Satisfied
on March 18, 2026
Posted by: Anonymous
I'm satisfied with my purchase. Wish I could have spoken to someone about the dimensions of the filters, but its ok. These work
Written by a customer while visiting Filterbuy
Customer Rating
5
I purchased these prior to
on March 18, 2026
Posted by: Anonymous
I purchased these prior to needing them but the price looks good and they look sturdy. I tend to change my filters every two months even though I have no pets but I do have allergies. If they hold up--I intend to put two of them in at the end of the month--I may get them on auto-renewal.
Written by a customer while visiting Filterbuy
Customer Rating
5
Says Merv 11 last 3
on March 18, 2026
Posted by: Anonymous
Says Merv 11 last 3 months, mine barely get 2. I have 2 dogs, 1 indoor/ outdoor cat, cook a lot (near the return) and live on a dirt road, so maybe my situation isn't the "norm"??
Written by a customer while visiting Filterbuy
Customer Rating
5
Perfect fit
on March 18, 2026
Posted by: Anonymous
I have tried other companies that said they could make any size This was untrue. This company however had the correct filter in the correct size and shipped quickly.
Written by a customer while visiting Filterbuy
Customer Rating
1
Not the right size and
on March 18, 2026
Posted by: Anonymous
Not the right size and not on the auto. Renewal plan
Written by a customer while visiting Filterbuy