Customer reviews from Filterbuy
Filterbuy - 20x20x4 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (6-Pack) - Gold
Average customer rating
4.4
(6,998 Reviews)
Rating breakdown 6,998 reviews
5 Stars
5,166
4 Stars
754
3 Stars
438
2 Stars
245
1 Star
395
Customer Reviews for Filterbuy - 20x20x4 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (6-Pack) - Gold
Customer Rating
4
Wish the filter was a
on July 20, 2026
Posted by: Customer
Wish the filter was a tad skinnier. When I slide the filter in, my unit causes the filter to squish and the cardboard on top bends upwards slightly. I can’t just check the filter because the filter tears, I have to remove and replace it
Written by a customer while visiting Filterbuy
Customer Rating
5
Excellent Furnace Filters
on July 20, 2026
Posted by: Customer
Filterbuy merve 11 filter does an excellent job of filtering the air.
Written by a customer while visiting Filterbuy
Customer Rating
3
Received Damaged Again
on July 19, 2026
Posted by: Customer
All filters in last order were received bent or slightly smashed. Once again I informed filter buy.
Written by a customer while visiting Filterbuy
Customer Rating
5
Filterbuy filters
on July 18, 2026
Posted by: Customer
I would definitely recommend their filters! Great price for quality filters!
Written by a customer while visiting Filterbuy
Customer Rating
5
GOOD SERVICE
on July 18, 2026
Posted by: Customer
PROMPT SERVICE. FILTERS WERE AS DESCRIBED. I RECCOMEND GIVING FILTERBUY A TRY WHEN YOU NEED FILTERS.
Written by a customer while visiting Filterbuy
Customer Rating
2
Poor quality
on July 15, 2026
Posted by: Customer
The sides of the filter frame are not glued properly. I had to glue it together so it won’t fall apart during usage.
Written by a customer while visiting Filterbuy
Customer Rating
5
Great Filters
on July 15, 2026
Posted by: Customer
These filters fit my new HVAC perfectly. Using the subscription feature I don't have to worry about not having a filter when its time to change them.
Written by a customer while visiting Filterbuy
Customer Rating
5
Great product
on July 15, 2026
Posted by: Customer
Everything worked great it was a little bit larger then the fitting but was able to squeeze it on
Written by a customer while visiting Filterbuy