Customer reviews from Filterbuy
Filterbuy - 15x20x4 MERV 13 Smoke & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (5-Pack) - Blue
Average customer rating
4.4
(5,900 Reviews)
Rating breakdown 5,900 reviews
5 Stars
4,402
4 Stars
555
3 Stars
405
2 Stars
201
1 Star
337
Customer Reviews for Filterbuy - 15x20x4 MERV 13 Smoke & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (5-Pack) - Blue
Customer Rating
1
Smaller Than the Size States
on February 6, 2026
Posted by: Anonymous
These filters aren't the measurement indicated. Received ours and put one in the furnace and it flip flopped from side to side and top to bottom. Our furnace company said that this will cause the furnace to work harder putting undo strain on it. We returned the filters.
Written by a customer while visiting Filterbuy
Customer Rating
1
Wrong size
on December 20, 2025
Posted by: Anonymous
Two orders in a row now Filterbuy has screwed up the size on a custom order. The stickers on them are the right size, but when measured they are significantly larger. Same mistake both times. As a result they do not fit. This used to be a good company. They've lost their way the last 2 yrs. Try somewhere else.
Written by a customer while visiting Filterbuy
Customer Rating
5
Breathing Easy
on November 13, 2025
Posted by: Anonymous
I love these filters. I have really bad allergies, 5 dogs and a cat. What a combo, but these filters really do help with air quality. Plus they are delivered right to my door.
Written by a customer while visiting Filterbuy
Customer Rating
5
I just received them so
on October 27, 2025
Posted by: Iris C.
I just received them so i put one Im going to see how it works
Written by a customer while visiting Filterbuy
Customer Rating
5
I Just Found My New Filter Provider of Choice
on October 21, 2025
Posted by: Anonymous
I purchased several 30x32x2 MERV13 filters for my furnace. Price was very reasonable, almost too reasonable. Package arrived quickly and in good shape. Filters were accurately sized, with high quality materials and assembly. They fit perfectly and work great. Very happy to report they are whole framed filters, not several smaller filters glued together, as with some competitors. I will definitely shop with this vendor from now on.
Written by a customer while visiting Filterbuy
Customer Rating
5
I really like them an
on October 16, 2025
Posted by: Anonymous
I really like them an easy to install and catches a lot of dust etc. perfect for me.
Written by a customer while visiting Filterbuy
Customer Rating
2
Filter
on October 7, 2025
Posted by: Bonnie T.
The furnace filter I bought is the same size that I replaced, and it is much narrower than the same sized one that I replaced in my furnace
Written by a customer while visiting Filterbuy
Customer Rating
5
merv 13
on October 7, 2025
Posted by: Anonymous
I have been using your filters for a few years now. I like that they remove a lot of the unwanted dirt and pollutants in the air. And the price isn't bad either.
Written by a customer while visiting Filterbuy