Customer reviews from Filterbuy
Filterbuy - 21x23.5x1 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (3-Pack) - Gold
Average customer rating
4.6
(3,950 Reviews)
Rating breakdown 3,950 reviews
5 Stars
3,136
4 Stars
393
3 Stars
198
2 Stars
89
1 Star
134
Customer Reviews for Filterbuy - 21x23.5x1 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (3-Pack) - Gold
Customer Rating
2
17.5x17.5 should not be sold as 18x18
on March 26, 2019
Posted by: Feroz A.
I'm aware of 3/4" variance but 1/2" variance is not acceptable and will never buy again. We have issues, one the filter is not snug to the frame and second, every time the system runs, it sucks the filter towards the frame making unnecessary sound. You guys lost my trust :(.
Written by a customer while visiting Filterbuy
Customer Rating
5
Not only a great bargain
on March 25, 2019
Posted by: Anonymous
Not only a great bargain but also @ 19.5 inches. Is the only filter that fits my new air conditioner which is a 16x20x1 but the opening only 19 9/16-so fits perfect while all could find at several stores 19 3/4-have to cut them- no fun!
Written by a customer while visiting Filterbuy
Customer Rating
5
Filters
on March 25, 2019
Posted by: Virginia G.
Quick service, affordable product that works perfectly
Written by a customer while visiting Filterbuy
Customer Rating
5
Second year using FliterBuy
on March 21, 2019
Posted by: Anonymous
Last year I used only Filter Buy filters in my aging furnace. Changed them every 3 months as usual. When the tech came to do the spring maintenance this year they commented on the quality of the product. I replaced filters that used to cost 11 each with Filter Buy products with the same MERV rating that cost 4 dollars. Needless to say I bought 4 more filters for this year. Made in America, costs less and works great. A Win! When this furnace kicks the bucket I will join the automatic plan and save a even few more dollars. Thanks FilterBuy. Awesome product!
Written by a customer while visiting Filterbuy
Customer Rating
5
Great filters
on March 21, 2019
Posted by: Anonymous
I looked at all the local stores and came up empty handed,bought these and they work great, thanks filter buy
Written by a customer while visiting Filterbuy
Customer Rating
4
Furnace filters
on March 20, 2019
Posted by: Anonymous
Great service especially for unusual filter sizes. Also nice to get filter quality choices.
Written by a customer while visiting Filterbuy
Customer Rating
5
You can tell the difference
on March 19, 2019
Posted by: Campobasso
From comparing the general Honeywell filters to FilterBuy; the metal mesh and fabric used is thicker and overall more Ridgid.
Written by a customer while visiting Filterbuy
Customer Rating
5
Great Find!
on March 18, 2019
Posted by: Anonymous
So glad I could order reliable custom fit filters for my new house. I'll be re-ordering in the future. Thanks!
Written by a customer while visiting Filterbuy