Customer reviews from Filterbuy
Filterbuy - 13x21.5x1 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (4-Pack) - Gold
Average customer rating
4.4
(7,006 Reviews)
Rating breakdown 7,006 reviews
5 Stars
5,173
4 Stars
754
3 Stars
439
2 Stars
245
1 Star
395
Customer Reviews for Filterbuy - 13x21.5x1 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (4-Pack) - Gold
Customer Rating
5
Early
on May 20, 2026
Posted by: Customer
Filters look nice, review of them is a bit early. Ask me again in 4 months once I’ve used one.
Written by a customer while visiting Filterbuy
Customer Rating
5
Great Filters
on May 19, 2026
Posted by: Customer
I've been using FilterBuy for years and I order four sets annually. The price is reasonable and love the automatic ordering so my filters arrive just in time for the next change which I do every three months.
Written by a customer while visiting Filterbuy
Customer Rating
3
Please cancel my subscription. I
on May 18, 2026
Posted by: Customer
Please cancel my subscription. I do not need it any longer.
Written by a customer while visiting Filterbuy
Customer Rating
5
Lightning fast, great filters!
on May 17, 2026
Posted by: Customer
I realized I had used my last filter and the one in my furnace was old, so I ordered a new 6 pack immediately. The new box was on my porch the next day! Super easy website and fantastic quality and price. Keep it up!
Written by a customer while visiting Filterbuy
Customer Rating
5
Questionable quality
on May 17, 2026
Posted by: Customer
The 14X14 filters are fine. I question why the 18X24 filters are not marked on the frame with the Merv11 marking? I am not convinced I received the same quality filters I expected.
Written by a customer while visiting Filterbuy
Customer Rating
5
Have used these filters for
on May 17, 2026
Posted by: Customer
Have used these filters for over 8yrs niw! We like them very much!
Written by a customer while visiting Filterbuy
Customer Rating
5
The best for the price.
on May 17, 2026
Posted by: Customer
I live in Florida with two dogs. . . we all have hay fever, yep even the dogs. So top notch filters are a must, but also don't want to starve air to the a/c air handler, so the MERV 11s are wonderful. Can't recommend them too highly.
Written by a customer while visiting Filterbuy
Customer Rating
4
Product
on May 16, 2026
Posted by: Customer
Would be nice if u can add the weather strips around the filter to better prevent air leak thru.
Written by a customer while visiting Filterbuy