Customer reviews from Filterbuy
Filterbuy - 20x20x4 MERV 8 Dust & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (6-Pack) - Silver
Average customer rating
4.6
(7,979 Reviews)
Rating breakdown 7,979 reviews
5 Stars
6,412
4 Stars
704
3 Stars
346
2 Stars
211
1 Star
306
Customer Reviews for Filterbuy - 20x20x4 MERV 8 Dust & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (6-Pack) - Silver
Customer Rating
5
I have been getting my
on August 8, 2026
Posted by: Customer
I have been getting my filters here for a few years now and they are very good.
Written by a customer while visiting Filterbuy
Customer Rating
5
Love this filter buy
on August 8, 2026
Posted by: Customer
It is easy to find the sizes or size you need. You might order a few more extra to go with here like I did. I have to tell you great quality filters, great buy, and ships to your house! What a fabulous concept!
Written by a customer while visiting Filterbuy
Customer Rating
5
Cancellation
on August 7, 2026
Posted by: Customer
Please cancel any scheduled deliveries. We no longer need that size of filter.
Written by a customer while visiting Filterbuy
Customer Rating
5
They arrive and they work.
on August 6, 2026
Posted by: Customer
The filters work. If you have sinus problems or allergies, just changing filters every quarter makes your life better. Makes you get sick less often.
Written by a customer while visiting Filterbuy
Customer Rating
4
Size
on August 6, 2026
Posted by: Customer
Dissappointed, Dimensions of the filter ran small. Almost did not cover opening completely. Old store bought filters are more true to size.
Written by a customer while visiting Filterbuy
Customer Rating
5
Great Price!
on August 6, 2026
Posted by: Customer
Good quality filters. No more going store to store trying to find out weird size! Love the reminders to change filter.
Written by a customer while visiting Filterbuy
Customer Rating
5
We were advised to use
on August 6, 2026
Posted by: Customer
We were advised to use filters in our cold air returns, rather than a large one in the air handler. Filter Buy had the exact filter sizes we needed, They are well put together. and the price was very competitive.
Written by a customer while visiting Filterbuy
Customer Rating
5
20x25x1 MERV 8 Pleated Air Filter
on August 5, 2026
Posted by: Customer
I've been using these for many years. They work very well, even with multiple cats.
Written by a customer while visiting Filterbuy