Customer reviews from Filterbuy
Filterbuy - 21x22x1 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (5-Pack) - Gold
Average customer rating
4.6
(3,971 Reviews)
Rating breakdown 3,971 reviews
5 Stars
3,154
4 Stars
394
3 Stars
200
2 Stars
89
1 Star
134
Customer Reviews for Filterbuy - 21x22x1 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (5-Pack) - Gold
Customer Rating
5
New Filters
on October 15, 2026
Posted by: Customer
Purchased 6, & just started with first one about two weeks ago. Checked it last night & appears to be doing the job.
Written by a customer while visiting Filterbuy
Customer Rating
5
Great deal!
on October 14, 2026
Posted by: Customer
I think these Merv 11 filters catch all the dust in dog hair always surprising me how much!
Written by a customer while visiting Filterbuy
Customer Rating
5
Only had for a couple
on October 14, 2026
Posted by: Customer
Only had for a couple of weeks. So far so good. Fits the slot perfectly!
Written by a customer while visiting Filterbuy
Customer Rating
4
I have to tape them
on October 13, 2026
Posted by: Customer
I have to tape them to my unit I'm a 20/20x1 and they say they fit but they do not and every once in awhile there's a huge siren sound that has to be readjusted but other than that they are fantastic
Written by a customer while visiting Filterbuy
Customer Rating
5
filters
on October 13, 2026
Posted by: Customer
I love the filters and also the convenience of them coming every 6 months
Written by a customer while visiting Filterbuy
Customer Rating
5
Service
on October 13, 2026
Posted by: Customer
Have used fikter buy for 8 years. Prompt reliable service each time I orfered
Written by a customer while visiting Filterbuy
Customer Rating
5
These filters are perfectly sized
on October 12, 2026
Posted by: Customer
These filters are perfectly sized and great for our home.
Written by a customer while visiting Filterbuy
Customer Rating
5
Its very strong
on October 9, 2026
Posted by: Customer
Its better than the one im using to be honest. I like the quality .
Written by a customer while visiting Filterbuy