Customer reviews from Filterbuy
Filterbuy - 20x20x4 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (6-Pack) - Gold
Average customer rating
4.4
(7,000 Reviews)
Rating breakdown 7,000 reviews
5 Stars
5,168
4 Stars
754
3 Stars
438
2 Stars
245
1 Star
395
Customer Reviews for Filterbuy - 20x20x4 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (6-Pack) - Gold
Customer Rating
2
No longer true to size
on May 9, 2026
Posted by: Customer
24" x 24" isn't true any more.
All past orders fit right but none of these do.
Written by a customer while visiting Filterbuy
Customer Rating
5
Great Job, Great Price and
on May 9, 2026
Posted by: Customer
Great Job, Great Price and love the free deliveries
Written by a customer while visiting Filterbuy
Customer Rating
5
Great filters for air purifier
on May 9, 2026
Posted by: Customer
Great filters for air purifier great fit much cheaper
Written by a customer while visiting Filterbuy
Customer Rating
5
I was able to purchase
on May 9, 2026
Posted by: Customer
I was able to purchase three filters that I usually get. I have always found this filter to be great.
Written by a customer while visiting Filterbuy
Customer Rating
5
Very fast service. A little
on May 8, 2026
Posted by: Customer
Very fast service.
A little expensive but I’m supportive of purchasing g this Made In USA product.
A little expensive but I’m supportive of purchasing g this Made In USA product.
Written by a customer while visiting Filterbuy
Customer Rating
5
Staying Healthy
on May 8, 2026
Posted by: Customer
Best filter around and a variety to select from your computer to meet your needs and finances.
Written by a customer while visiting Filterbuy
Customer Rating
5
Great Filter - works too well
on May 7, 2026
Posted by: Customer
The air in my home is so clean, its hard to believe
Written by a customer while visiting Filterbuy
Customer Rating
5
Great filters
on May 6, 2026
Posted by: Customer
I have been using FilterBuy for about 2 years. Their delivery is great and on time. The price is unbeatable and the product is amazing.
Written by a customer while visiting Filterbuy