Customer reviews from Filterbuy
Filterbuy - 21x23.5x1 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (3-Pack) - Gold
Average customer rating
4.6
(3,950 Reviews)
Rating breakdown 3,950 reviews
5 Stars
3,136
4 Stars
393
3 Stars
198
2 Stars
89
1 Star
134
Customer Reviews for Filterbuy - 21x23.5x1 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (3-Pack) - Gold
Customer Rating
5
Finally found one that fits
on February 7, 2025
Posted by: Anonymous
I have a 20x20x1 and bought quite a few other brands of filters, they never truly fit, I would have to try and get it to fit. Filterbuy makes it the perfect size, I no longer have to fight to get the filter in place!
Written by a customer while visiting Filterbuy
Customer Rating
3
Smaller
on February 5, 2025
Posted by: Anonymous
Filter was a little smaller than my other brand. Also frame of the filter was coming apart.
Written by a customer while visiting Filterbuy
Customer Rating
5
Great Filters
on February 4, 2025
Posted by: Anonymous
Very effective and long lasting. Highly recommend!
Written by a customer while visiting Filterbuy
Customer Rating
5
Great supplier
on February 4, 2025
Posted by: LOREN F.
Great filter source. I have used Filterbuy filters in out laboratory for about 5 years. We have a somewhat unusual set of requirements and Filterbuy is the only single source supplier that we have found that can supply our needs. In the past we had to purchase our filters from multiple suppliers as we needed many different sizes and filteration requirements but with Filterbuy we now have a single source to meet our requirements. I rate Filterbuy AAA+++.
Written by a customer while visiting Filterbuy
Customer Rating
5
Great supplier
on February 4, 2025
Posted by: LOREN F.
Great filter source. I have used Filterbuy filters in out laboratory for about 5 years. We have a somewhat unusual set of requirements and Filterbuy is the only single source supplier that we have found that can supply our needs. In the past we had to purchase our filters from multiple suppliers as we needed many different sizes and filteration requirements but with Filterbuy we now have a single source to meet our requirements. I rate Filterbuy AAA+++.
Written by a customer while visiting Filterbuy
Customer Rating
5
Great supplier
on February 4, 2025
Posted by: LOREN F.
Great filter source. I have used Filterbuy filters in out laboratory for about 5 years. We have a somewhat unusual set of requirements and Filterbuy is the only single source supplier that we have found that can supply our needs. In the past we had to purchase our filters from multiple suppliers as we needed many different sizes and filteration requirements but with Filterbuy we now have a single source to meet our requirements. I rate Filterbuy AAA+++.
Written by a customer while visiting Filterbuy
Customer Rating
5
Great supplier
on February 4, 2025
Posted by: LOREN F.
Great filter source. I have used Filterbuy filters in out laboratory for about 5 years. We have a somewhat unusual set of requirements and Filterbuy is the only single source supplier that we have found that can supply our needs. In the past we had to purchase our filters from multiple suppliers as we needed many different sizes and filteration requirements but with Filterbuy we now have a single source to meet our requirements. I rate Filterbuy AAA+++.
Written by a customer while visiting Filterbuy
Customer Rating
5
Filter
on February 3, 2025
Posted by: JEAN B.
So far so good 50 year old mobile home had metal filter just felt that these were easier to use
Written by a customer while visiting Filterbuy