Customer reviews from Filterbuy
Filterbuy - 21x21x1 MERV 8 Dust & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (4-Pack) - Silver
Average customer rating
4.7
(5,909 Reviews)
Rating breakdown 5,909 reviews
5 Stars
4,903
4 Stars
498
3 Stars
213
2 Stars
113
1 Star
182
Customer Reviews for Filterbuy - 21x21x1 MERV 8 Dust & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (4-Pack) - Silver
Customer Rating
1
My filters were thrown into
on September 20, 2026
Posted by: Customer
My filters were thrown into my yard in a rain storm. They were soaked and when I contacted the company they said they couldn’t do anything about the weather. No but it could have been prevented if they were packaged better. Everything is so expensive anymore and ruined air filters are the last thing I needed to worry about.
Written by a customer while visiting Filterbuy
Customer Rating
5
Thank you very much. !! Next
on September 19, 2026
Posted by: Customer
Thank you very much. !! Next time I order I have to make an adjustments to the length. About half an inch shorter in length. My fault
Written by a customer while visiting Filterbuy
Customer Rating
5
the whole process was hassle
on September 19, 2026
Posted by: Customer
the whole process was hassle free!
Filters appear well made and seems to be working great.
Thank You.
Bobl
Filters appear well made and seems to be working great.
Thank You.
Bobl
Written by a customer while visiting Filterbuy
Customer Rating
5
I've used your brand in
on September 19, 2026
Posted by: Customer
I've used your brand in the past and like tge results. I just changed our filters which I do every month any ways to help with filtering out the dust and whatever else might get tucked in.
Written by a customer while visiting Filterbuy
Customer Rating
2
Filters
on September 19, 2026
Posted by: Customer
I bought three different size filters they were all stuffed into one box the box is too small to fit all the filters in from yes three of my filters got smashed during shipment or Packaging
Written by a customer while visiting Filterbuy
Customer Rating
5
Just put him in for use
on September 18, 2026
Posted by: Customer
I just put them in for use so far they seem to be working fine I will update you later on it when I get a whole momentum so far there look great
Written by a customer while visiting Filterbuy
Customer Rating
4
Cardboard framing of the filter
on September 17, 2026
Posted by: Customer
Cardboard framing of the filter is getting flimsy.
Written by a customer while visiting Filterbuy
Customer Rating
4
f d ord good job
on September 17, 2026
Posted by: Customer
f d ord good job bug house still smells musty a times. have tried the merv 11 but believe that may be too much for system
Written by a customer while visiting Filterbuy