Customer reviews from Filterbuy
Filterbuy - 21x21.5x1 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (1-Pack) - Gold
Average customer rating
4.6
(3,905 Reviews)
Rating breakdown 3,905 reviews
5 Stars
3,098
4 Stars
390
3 Stars
196
2 Stars
88
1 Star
133
Customer Reviews for Filterbuy - 21x21.5x1 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (1-Pack) - Gold
Customer Rating
5
13x21x1 air filter
on February 23, 2018
Posted by: Anonymous
I needed a n irregular size air filter for my furnace. FilterBuy had it in stock and delivered it in two or three days and it was perfect. I couldn't be happier. I spent several weeks hunting around Atlanta for the size but couldn't find them anywhere. I should have gone to FilterBuy first.
Written by a customer while visiting Filterbuy
Customer Rating
5
Easy
on February 21, 2018
Posted by: Carrie H.
Love this site. My filter size doesnt exist in stores. This is easy to buy 6 and have them ready. I recommend this site to everyone.
Written by a customer while visiting Filterbuy
Customer Rating
5
Excellent service
on February 18, 2018
Posted by: Prajakta P.
Fast, reliable service with unbelievable prices. Definitely recommended.
Written by a customer while visiting Filterbuy
Customer Rating
5
Just like they said they
on February 11, 2018
Posted by: Anonymous
Just like they said they would....quick and precise
Written by a customer while visiting Filterbuy
Customer Rating
5
Haven't used yet
on February 8, 2018
Posted by: Anonymous
I love the speed with which Filter Buy delivers, but haven't yet used my new upgraded filters
Written by a customer while visiting Filterbuy
Customer Rating
4
18x18 ok
on February 7, 2018
Posted by: Anonymous
So far so good. Unlike the 14 x14 filters which arrived and were too small compared to other commercial 14 x 14 filters, the 18x 18 fit fine and seem to be of ok quality.
Written by a customer while visiting Filterbuy
Customer Rating
5
20x20x1 & 16x20x1
on February 7, 2018
Posted by: Danny C.
Very well-made filter and exceptional value compared to products from the big box stores
Written by a customer while visiting Filterbuy
Customer Rating
4
Size
on February 6, 2018
Posted by: Anonymous
They are a little smaller in size than the 3M Filtrete filters. Can't say anything about the performance yet.
Written by a customer while visiting Filterbuy