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
2
Mixed
on March 15, 2026
Posted by: Anonymous
The filters are fine. . . good quality. I'm disappointed in the company not allowing me to return the wrong size that was originally sent. They replaced them for free but now tell me to just give them away or landfill them. I'm at a loss because they are a unique size no one seems to want and I don't feel comfortable just disposing them. It's left me with a dilemma.
Written by a customer while visiting Filterbuy
Customer Rating
5
Another American-made product with great
on March 15, 2026
Posted by: Anonymous
Another American-made product with great value and performance.
Written by a customer while visiting Filterbuy
Customer Rating
4
4" filter review
on March 15, 2026
Posted by: Anonymous
So far they seem to be performing well! However the pleats should be evenly spaced and the ones that I received are uneven and tight together creating areas with less air flow!
Written by a customer while visiting Filterbuy
Customer Rating
5
Excellent overall. Ships on time
on March 14, 2026
Posted by: Daryl G.
Excellent overall. Ships on time every time, good price, excellent quality. Fits perfect
Written by a customer while visiting Filterbuy
Customer Rating
5
16x20 and 20x20
on March 13, 2026
Posted by: Anonymous
Hopefully they are working ss the allergens are really high here. They has just been in a couple of days.
Written by a customer while visiting Filterbuy
Customer Rating
5
New look
on March 13, 2026
Posted by: Anonymous
Liked the white look not so much for the blue color
Written by a customer while visiting Filterbuy
Customer Rating
5
What A Savings
on March 12, 2026
Posted by: Anonymous
The price is outta sight! I will not find out if the filters are worth it for another 3 months
Written by a customer while visiting Filterbuy
Customer Rating
5
Marked difference
on March 12, 2026
Posted by: Anonymous
I was using a different brand before and when I would replace that brand, there was no trapped dirt. With filterbuy, the filters are full after only three months. My air is much cleaner. They shipped overnight, which I appreciate because I forgot to put them on subscription. Great product. Great company.
Written by a customer while visiting Filterbuy