Customer reviews from Filterbuy
Filterbuy - 21.5x21.5x1 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (2-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 - 21.5x21.5x1 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (2-Pack) - Gold
Customer Rating
5
I have a Water-Furnace, Geo
on March 24, 2024
Posted by: Anonymous
I have a Water-Furnace, Geo unit. The filter fit perfectly into it and is working great so far. Thanks.
Written by a customer while visiting Filterbuy
Customer Rating
5
Perfect custom sizes.
on March 22, 2024
Posted by: Anonymous
My Rheem apparently requires an oddball size filter. Filterbuy makes them precisely the custom size it needs, and they're made in the USA. This is my 3rd order over 3 years (I change them every 3 months), and they're perfect every time, right down to the millimeter.
Written by a customer while visiting Filterbuy
Customer Rating
5
quick shipment time and friendly
on March 21, 2024
Posted by: Joel F.
quick shipment time and friendly people to work with.
Written by a customer while visiting Filterbuy
Customer Rating
5
Merv 11 is anazing
on March 20, 2024
Posted by: Anonymous
I bought the Merv 11 its amazing. No dust at all and its been 2 weeks. Unfortunately, I measured without slotting room for the metal door to close . Its a little too big. It did force it inside but for the money I should have been more careful. It needed to be 1/2 inch smaller
Written by a customer while visiting Filterbuy
Customer Rating
3
My furnace makes a whistling
on March 20, 2024
Posted by: Jen G.
My furnace makes a whistling sound with this new filter that is concerning.
Written by a customer while visiting Filterbuy
Customer Rating
5
Fabulous
on March 20, 2024
Posted by: Anonymous
Great prices and great quality- stocked everyone up on filters
Written by a customer while visiting Filterbuy
Customer Rating
5
Perfect filer and awesome price!
on March 20, 2024
Posted by: Anonymous
Perfect filer and awesome price! This was a one-time purchase but I'm planning on signing up for Auto refill for convenience and savings.
Written by a customer while visiting Filterbuy
Customer Rating
2
Actual size is less than
on March 19, 2024
Posted by: Anonymous
Actual size is less than normal filters with this dimension (by around 1/4") leaving a gap around the edges and resulting in an air leak; not ideal for air filters. 20 x 20s are not actually 20 x 20 but it was my assumption that all 20 x 20s would be the same. My mistake, I guess, but irritating. I'll tape around the sides but I shouldn't have to do that.
Written by a customer while visiting Filterbuy