Customer reviews from Filterbuy
Filterbuy - 21.5x23.5x1 MERV 8 Dust & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (1-Pack) - Silver
Average customer rating
4.7
(5,923 Reviews)
Rating breakdown 5,923 reviews
5 Stars
4,915
4 Stars
500
3 Stars
213
2 Stars
113
1 Star
182
Customer Reviews for Filterbuy - 21.5x23.5x1 MERV 8 Dust & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (1-Pack) - Silver
Customer Rating
5
Perfect fit
on May 11, 2026
Posted by: Customer
I have been purchasing this filter by the dozen for a six month supply at our house. They are a perfect fit for the filter housing. They are also a perfect fit for us. We have a dog and a cat, and a persons with environmental allergies (just not to cats or dogs). These work great for us! Buying them a dozen at a time makes them an affordable choice given that we need a non-standard size.
Written by a customer while visiting Filterbuy
Customer Rating
5
Filter season
on May 9, 2026
Posted by: Customer
These filters work fine. . . you know they work fine or you wouldn't be selling them. Can yiu tell i hate doing this?
Written by a customer while visiting Filterbuy
Customer Rating
5
Filters work great, very satisfied
on May 9, 2026
Posted by: Customer
Filters work great, very satisfied with them. Will continue to buy.
Written by a customer while visiting Filterbuy
Customer Rating
5
FILTERS
on May 9, 2026
Posted by: Customer
Filters fit great, have been using this brand for over three years
I change filters every 6 months, don't use the HVAC that often.
I change filters every 6 months, don't use the HVAC that often.
Written by a customer while visiting Filterbuy
Customer Rating
5
I been using the same
on May 8, 2026
Posted by: Customer
I been using the same air filter's for years. Only your filter's will do.
Written by a customer while visiting Filterbuy
Customer Rating
5
Thank You, Jasmine!
on May 8, 2026
Posted by: Customer
I was assisted wonderfully by Filterbuy, and particularly by Jasmine King. Thank you!!!
Written by a customer while visiting Filterbuy
Customer Rating
5
Great product and service. Will
on May 7, 2026
Posted by: Anonymous
Great product and service. Will order again. Thank you all.
Written by a customer while visiting Filterbuy
Customer Rating
4
Review filters
on May 7, 2026
Posted by: Customer
I like the filters so far but the size doesn’t fit snug the door has to hold them in because they’re to lose for the frame to hold them in the casing and the 20x20 is the size I always buy but my door holds them up.
Written by a customer while visiting Filterbuy