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
(7,982 Reviews)
Rating breakdown 7,982 reviews
5 Stars
6,413
4 Stars
704
3 Stars
347
2 Stars
212
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
Filter Satisfaction
on September 9, 2025
Posted by: Anonymous
They were Delivered faster than expected, correct fit, work well
Written by a customer while visiting Filterbuy
Customer Rating
4
have not used them yet
on September 9, 2025
Posted by: Anonymous
have not used them yet need to use my other ones up first
Written by a customer while visiting Filterbuy
Customer Rating
5
4-pak will probably last a
on September 8, 2025
Posted by: Anonymous
4-pak will probably last a year or more. 3 months is there supposed duration per filter. Good for 2. 5 - 3 ton unit. Price is very reasonable.
Written by a customer while visiting Filterbuy
Customer Rating
5
Have not used them yet,
on September 8, 2025
Posted by: Anonymous
Have not used them yet, but they look good and purchase process was super easy
Written by a customer while visiting Filterbuy
Customer Rating
5
Filters
on September 8, 2025
Posted by: Anonymous
I received the filters and placed two in my furnace. They look great and fit very well. Actually I will know more after a few months and see how they do.
Written by a customer while visiting Filterbuy
Customer Rating
5
I bought 25 x 25
on September 8, 2025
Posted by: Anonymous
I bought 25 x 25 x1 and havent used any yet but they look fine.
Written by a customer while visiting Filterbuy
Customer Rating
5
Incredible range of sizes
on September 6, 2025
Posted by: Anonymous
Using as primary in take filter on top of my mini split in wood turning (very dusty each day) shop. Colleague had to replace his ruined mini split at four years. Mine is going strong year round since 2017, with yearly maintenance.
Written by a customer while visiting Filterbuy
Customer Rating
5
I haven't used them yet but
on September 5, 2025
Posted by: Anonymous
The quality looks great and they were sent amazingly fast.
Written by a customer while visiting Filterbuy