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
(7,994 Reviews)
Rating breakdown 7,994 reviews
5 Stars
6,423
4 Stars
705
3 Stars
347
2 Stars
212
1 Star
307
Customer Reviews for Filterbuy - 12x12x4 MERV 8 Dust & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (12-Pack) - Silver
Customer Rating
5
Filterbuy
on March 9, 2026
Posted by: Anonymous
The filters I purchased for my heat pump are great ! Good quality and a terrific price ! Thank you !
Written by a customer while visiting Filterbuy
Customer Rating
5
20x20x1" filters
on March 9, 2026
Posted by: Anonymous
These work great. I ama returning customer. Can't beat the price. Love this brand.
Written by a customer while visiting Filterbuy
Customer Rating
5
Furnace filters
on March 9, 2026
Posted by: Anonymous
I like these filters since they fit snugly yet not so tightly that they are difficult to remove and insert. . I have been using them for a couple of years. They fit much better than the 3M Filtrete.
Written by a customer while visiting Filterbuy
Customer Rating
5
Im okay with these because
on March 9, 2026
Posted by: Anonymous
Im okay with these because they are what I needed but the 20x20x1 Im not happy at all and I tried to make changes when I seen it was the wrong size :thinking: no one cared to even bother so I am done
Written by a customer while visiting Filterbuy
Customer Rating
5
Filter Pack-6 count
on March 9, 2026
Posted by: Anonymous
I stumbled upon Filterbuy a few years ago. The local, big box do-it-yourself stores never seemed to stock the odd filter size I need. Filterbuy always has them and at a lower price; I recommend Filterbuy!
Written by a customer while visiting Filterbuy
Customer Rating
1
Incorrect size
on March 9, 2026
Posted by: Anonymous
When I compared my 18x24x1 that I bought from your company to the one I already had in my AC I realized it was noticeably smaller
Written by a customer while visiting Filterbuy
Customer Rating
5
Always A++++++
on March 8, 2026
Posted by: Anonymous
Love this companys I have purchased from this company for several years! They have the right sizes! Fast Ship! Excellent Quality! Never have I had any issues! I think their prices are good too! Than you!!
Written by a customer while visiting Filterbuy
Customer Rating
5
New but doing well
on March 8, 2026
Posted by: Anonymous
Easy to purchase but have only used one and put it in the furnace. Have not checked it yet but it seems to be doing fine
Written by a customer while visiting Filterbuy