Customer reviews from Filterbuy
Filterbuy - 12x12x4 MERV 8 Dust & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (12-Pack) - Silver
Average customer rating
4.6
(7,992 Reviews)
Rating breakdown 7,992 reviews
5 Stars
6,422
4 Stars
705
3 Stars
347
2 Stars
212
1 Star
306
Customer Reviews for Filterbuy - 12x12x4 MERV 8 Dust & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (12-Pack) - Silver
Customer Rating
5
Stop the Emails
on June 6, 2026
Posted by: Customer
I have unsubscribed. If the daily emails do not stop I will never purchase from you again
Written by a customer while visiting Filterbuy
Customer Rating
3
Filter
on June 4, 2026
Posted by: Customer
I liked the quickness of delivery, but the size is not as described. It lacks the actual 20" x 24" x 1". The 1" is fine the others are just about 1/8" short, so I had to add folded cardboard to make up difference to fit in frame. Otherwise they are good.
Written by a customer while visiting Filterbuy
Customer Rating
5
Very happy with this product.
on June 4, 2026
Posted by: Customer
Very happy with this product. It does the job in keeping our home air clean. it is easy to use and fits perfectly. thank you.
Written by a customer while visiting Filterbuy
Customer Rating
5
20'x20 filters
on May 31, 2026
Posted by: Customer
They fit perfectly because they are just under 20". Thanks for the great service.
Written by a customer while visiting Filterbuy
Customer Rating
5
New HVAC system
on May 31, 2026
Posted by: Customer
This is a new filter for me, this one I will be using from now on. Since I'm pleased with your company I'll continue buying with you.
Written by a customer while visiting Filterbuy
Customer Rating
1
Don’t fit
on May 30, 2026
Posted by: Customer
First time ordering, the filters don’t fit!! I’m very disappointed.
Written by a customer while visiting Filterbuy
Customer Rating
5
They seem to do what
on May 30, 2026
Posted by: Customer
They seem to do what filters are meant to do correctly. I change them every 3 months, and also, I change a continent sponge every 6 months
Written by a customer while visiting Filterbuy
Customer Rating
5
Special Sizing
on May 30, 2026
Posted by: Customer
We have a tune up on the heat and air every six months. The company charges for one filter, of lesser quality, that we pay for the four Merv 8 pleated air filters. One return is an odd size ( I'm sure that is because we have to use the company filters ) and Filter Buy made the special size for our use.
Written by a customer while visiting Filterbuy