Customer reviews from Filterbuy
Filterbuy - 21x21x4 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (4-Pack) - Gold
Average customer rating
4
(1,157 Reviews)
Rating breakdown 1,157 reviews
5 Stars
669
4 Stars
149
3 Stars
120
2 Stars
91
1 Star
128
Customer Reviews for Filterbuy - 21x21x4 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (4-Pack) - Gold
Customer Rating
4
Actually, it is too soon
on May 6, 2025
Posted by: Anonymous
Actually, it is too soon to review the filters as I won't be changing one for about six months. They did arrive undamaged. I gave you a Four for ease of ordering.
Written by a customer while visiting Filterbuy
Customer Rating
5
Good quality replacement filter
on May 6, 2025
Posted by: Anonymous
Good quality replacement filter. To compensate for the 1/2 undersize, I attached a piece of stick on foam to the filter door and it works great.
Written by a customer while visiting Filterbuy
Customer Rating
5
Great quality
on May 2, 2025
Posted by: Anonymous
Just trying the filters out for the first time. The fit was good and I believe I will be continuing to purchase in the future.
Written by a customer while visiting Filterbuy
Customer Rating
5
Great!
on May 1, 2025
Posted by: Cory M.
They come pretty fast, packed neatly, and I change my filters every six months
Written by a customer while visiting Filterbuy
Customer Rating
5
Great Prices for quality filters.
on April 30, 2025
Posted by: Anonymous
Great Prices for quality filters. Very simple ordering and it's that simple. You will not regret it.
Written by a customer while visiting Filterbuy
Customer Rating
5
Great Value and product
on April 29, 2025
Posted by: Anonymous
I am very pleased. The filters appear to be high quality. The deliver was super fast. The company adds value by communication and building trust. It is great to "know" those you do business with.
Written by a customer while visiting Filterbuy
Customer Rating
3
Not exact measurement
on April 26, 2025
Posted by: Anonymous
Although size is ostensibly 16x20, theyre actually more like a 1/2 inchs to narrow so they dont fit like the Honeywell brand I had before
Written by a customer while visiting Filterbuy
Customer Rating
4
It's a filter. It fits
on April 25, 2025
Posted by: Doreen H.
It's a filter. It fits and it works. Not very pretty, but it sits inside the furnace so who cares? Good price and fast shipping.
Written by a customer while visiting Filterbuy