Customer reviews from Filterbuy
Filterbuy - 21x22x4 MERV 13 Smoke & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (4-Pack) - Blue
Average customer rating
4.1
(1,155 Reviews)
Rating breakdown 1,155 reviews
5 Stars
716
4 Stars
109
3 Stars
127
2 Stars
88
1 Star
115
Customer Reviews for Filterbuy - 21x22x4 MERV 13 Smoke & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (4-Pack) - Blue
Customer Rating
5
I’m happy with these guys.
on May 20, 2026
Posted by: Customer
I’m happy with these guys. It comes when it’s supposed to, they’ve made changes to the packaging to make it more robust over the years, I’d recommend.
Written by a customer while visiting Filterbuy
Customer Rating
5
Furnace filters
on May 14, 2026
Posted by: Customer
I think they do a great job. We live in the high step desert and it can get very dusty. Especially when the wind blows. Keep up the good work.
Thanks
Thanks
Written by a customer while visiting Filterbuy
Customer Rating
5
great filters, good value for
on May 12, 2026
Posted by: Customer
great filters, good value for your money and they arrived quickly!
Written by a customer while visiting Filterbuy
Customer Rating
5
I been using this for
on May 1, 2026
Posted by: Customer
I been using this for years and do not plan on changing even though I do not have any cats or dogs at this time.
Written by a customer while visiting Filterbuy
Customer Rating
5
Great Filters
on May 1, 2026
Posted by: Customer
They fit well, and work well. I love that they are made in the USA. I also like the reminders that it’s time I change and receiving them in the mail.
Written by a customer while visiting Filterbuy
Customer Rating
5
They work!
on April 29, 2026
Posted by: Customer
My wife’s allergies go away when we walk into the house.
Written by a customer while visiting Filterbuy
Customer Rating
5
It is the only place
on April 28, 2026
Posted by: Customer
It is the only place I get my filters. fast and have great filters
Written by a customer while visiting Filterbuy
Customer Rating
5
Needed to return due to
on April 27, 2026
Posted by: Customer
Needed to return due to wrong ordering
Need an accordion filter
Need an accordion filter
Written by a customer while visiting Filterbuy