Customer reviews from Filterbuy
Filterbuy - 18x21x1 MERV 13 Smoke & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (6-Pack) - Blue
Average customer rating
4.6
(3,366 Reviews)
Rating breakdown 3,366 reviews
5 Stars
2,670
4 Stars
300
3 Stars
182
2 Stars
73
1 Star
141
Customer Reviews for Filterbuy - 18x21x1 MERV 13 Smoke & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (6-Pack) - Blue
Customer Rating
5
Great company
on March 7, 2026
Posted by: Anonymous
thanks for your speedy service. We get our filters for 4 different houses (three rentals). It's always easy to order.
Written by a customer while visiting Filterbuy
Customer Rating
5
Furnace Filters
on March 7, 2026
Posted by: Anonymous
We were getting the Furnace filters from a local home improvement place. The filters we received are a much better quality not as flimsy.
Written by a customer while visiting Filterbuy
Customer Rating
5
This was my second purchase of six.
on March 6, 2026
Posted by: Anonymous
Filters are great. Price is also good. I definitely will buy again.
Written by a customer while visiting Filterbuy
Customer Rating
5
It looks like better quality than the rest!
on March 6, 2026
Posted by: Anonymous
When I received them everything was fine. They seem to be of quality. My last air conditioner was ruined by the air filter being too small and the filter housing was installed incorrectly. Thats why I wanted a good quality air filter. So thank you very much its just what I was looking for.
Written by a customer while visiting Filterbuy
Customer Rating
5
MERV 13 Filter
on March 5, 2026
Posted by: Anonymous
These filters are terrific. I feel a lot better health wise with these filters. Thanks FilterBuy.
Written by a customer while visiting Filterbuy
Customer Rating
5
Air filters for the home
on March 5, 2026
Posted by: Anonymous
Great service, and great buy, for such a high quality, does a great job on keeping the dirt out of our AC.
Written by a customer while visiting Filterbuy
Customer Rating
5
I love them
on March 4, 2026
Posted by: Anonymous
I really like these filters, theyre made in the USA which is a huge plus for me, they ship really quickly, and I like the way they control the dust in our home!
Written by a customer while visiting Filterbuy
Customer Rating
5
Wrong size
on March 4, 2026
Posted by: Anonymous
I bought a pack of 5 filters, 1x16x25 as jeed for my New HVAC,but they are little smaller for my unit, not good to run unit with smaller filter, defeat the purpose
Written by a customer while visiting Filterbuy