Customer reviews from Filterbuy
Filterbuy - 20x21x1 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (2-Pack) - Gold
Average customer rating
4.6
(3,948 Reviews)
Rating breakdown 3,948 reviews
5 Stars
3,134
4 Stars
393
3 Stars
198
2 Stars
89
1 Star
134
Customer Reviews for Filterbuy - 20x21x1 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (2-Pack) - Gold
Customer Rating
5
Service you can rely on.
on July 13, 2026
Posted by: Customer
For over a decade+ only place to get a filter to meet your requirements.
Written by a customer while visiting Filterbuy
Customer Rating
5
Great filters! Have 2 dogs
on July 13, 2026
Posted by: Customer
Great filters! Have 2 dogs and they really keep the air clean!!
These filters are so much better than what you can get at the large warehouse stores and they are competitively priced!
Written by a customer while visiting Filterbuy
Customer Rating
2
My last purchase
on July 11, 2026
Posted by: Customer
I understand rising costs. That being said, a 100% price increase is more than we are going to be able to accept.
Written by a customer while visiting Filterbuy
Customer Rating
5
The reminder emails are very
on July 11, 2026
Posted by: Customer
The reminder emails are very helpful. I also appreciate that my previous order was noted. This is a very convenient service.
Written by a customer while visiting Filterbuy
Customer Rating
3
Efficient but Noisy
on July 8, 2026
Posted by: Customer
I have had my new Merv 11 Pleated Air Filters in for about two weeks now.
I find them to be efficient but the noise level of them is about equal to my old brand name filters when they had reached the end of their cycle and need to be replaced.
And yes, if anyone is wondering, both the old and these new filters, filter at the same level.
Written by a customer while visiting Filterbuy
Customer Rating
5
My work excellent and fit
on July 8, 2026
Posted by: Customer
My work excellent and fit perfect price is excellent. Also, everyone needs to try the filter
Written by a customer while visiting Filterbuy
Customer Rating
5
I thought I ordered the
on July 7, 2026
Posted by: Customer
I thought I ordered the ones to be delivered every 3 months. These that are coming every month it's to soon.
Written by a customer while visiting Filterbuy
Customer Rating
5
Filters are top notch
on July 7, 2026
Posted by: Customer
Buying this way saves having to hope the retail store has my size in stock.
Written by a customer while visiting Filterbuy