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
5
I ordered them for myself
on July 8, 2026
Posted by: Customer
I ordered them for myself and my daughter, and they come very quick and fit perfectly.
Written by a customer while visiting Filterbuy
Customer Rating
5
Merv 13Filters
on July 8, 2026
Posted by: Customer
Quality filters at a competitive price. Convenient order process in economic quantities allows one to keep a supply on hand.
Written by a customer while visiting Filterbuy
Customer Rating
4
Whistling
on July 7, 2026
Posted by: Customer
Just installed 4 16x25 filters. They are securely placed, but I’m hearing a low whistling which o did not hear with my previous filters. Help!
Written by a customer while visiting Filterbuy
Customer Rating
5
Great filters at a reasonable price!
on July 7, 2026
Posted by: Customer
I'm very pleased with the replacement filters for my HVAC system. I ordered the same ones last time and they do not disappoint. Also, they arrive MUCH sooner than expected. I saved more by ordering in bulk.
Written by a customer while visiting Filterbuy
Customer Rating
4
Great Product, Poor Packaging!
on July 7, 2026
Posted by: Customer
Filters work well with my system and fit perfectly. Was very concerned, though, that they would make it in 1 piece. Product was not carefully packaged and almost didn't make it! See Pic.
Written by a customer while visiting Filterbuy
Customer Rating
5
Been buying this for several
on July 6, 2026
Posted by: Customer
Been buying this for several years now. It’s great not to have to go to the store and hunt for what you want.
Written by a customer while visiting Filterbuy
Customer Rating
5
Perfect choice for home filters
on July 6, 2026
Posted by: Customer
Great quality, quick shipment, and no damage to shipment due to secure packaging,
Written by a customer while visiting Filterbuy
Customer Rating
3
20x20x4 filter is only 3. 5 inches
on July 5, 2026
Posted by: Customer
These filters are a full half inch less deep than advertised, and almost an inch less than the 3M filters I have been using. Pretty disappointing.
Written by a customer while visiting Filterbuy