Customer reviews from Filterbuy
Filterbuy - 16x21x1 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (4-Pack) - Gold
Average customer rating
4.6
(3,952 Reviews)
Rating breakdown 3,952 reviews
5 Stars
3,137
4 Stars
393
3 Stars
199
2 Stars
89
1 Star
134
Customer Reviews for Filterbuy - 16x21x1 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (4-Pack) - Gold
Customer Rating
4
A little hard to tell
on May 10, 2026
Posted by: Customer
A little hard to tell about the effectiveness of the filter after only having it in my system for 2 weeks. my previous filter had a lot more pleats (surface area) in it to collect contaminants.
Written by a customer while visiting Filterbuy
Customer Rating
5
Great filters
on May 9, 2026
Posted by: Customer
Filter Buy has furnished me with great filters for many years now, and I highly their filters and the fine reputation of the company.
Written by a customer while visiting Filterbuy
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
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 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