Customer reviews from Filterbuy
Filterbuy - 20x20x2 MERV 13 Smoke & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (3-Pack) - Blue
Average customer rating
4.4
(5,904 Reviews)
Rating breakdown 5,904 reviews
5 Stars
4,406
4 Stars
555
3 Stars
405
2 Stars
201
1 Star
337
Customer Reviews for Filterbuy - 20x20x2 MERV 13 Smoke & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (3-Pack) - Blue
Customer Rating
5
Referred others!
on February 10, 2026
Posted by: Anonymous
We go from heat to nothing to air conditioning in a matter of days here, so I won't go without knowing the air is being filtered. FilterBuy is my favorite!
Written by a customer while visiting Filterbuy
Customer Rating
5
Filters for furnace
on February 7, 2026
Posted by: Anonymous
Great product, got in three days. Very happy with filterbuy. -----I tell others about you. do not know if they bought filters from you or not. -----GREAT COMPANY
Written by a customer while visiting Filterbuy
Customer Rating
5
25x20x4" filters
on February 7, 2026
Posted by: Anonymous
I am a repeat customer. The filters are great. i have pets, and the merv 13 seems to do a good job of picking up all the allergens.
Written by a customer while visiting Filterbuy
Customer Rating
5
Excellent price
on February 7, 2026
Posted by: Anonymous
Excellent quality and price. Perfect fit. I'll never buy from anywhere else again. Received my order in 2 days.
Written by a customer while visiting Filterbuy
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