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
5
Well made filter
on December 19, 2024
Posted by: Edward P.
This filter was of a higher quality than I have recently used and is an exact fit. I just ordered additional filters for the future.
Written by a customer while visiting Filterbuy
Customer Rating
5
Pleated filters
on December 19, 2024
Posted by: Anonymous
Great filters love them I have 3 dogs and change my filters monthly. I am surprised at how much debris these filters catch
Written by a customer while visiting Filterbuy
Customer Rating
5
Finally fit
on December 18, 2024
Posted by: Anonymous
I bought these for a commercial furnace for my Daughter Lets face it a 20 x 24 does not fit BUT if you look at the "actual size" They were 19. 5 x 23. 5 PERFECT fit. We had been having to squish the previous ones in these went right in! THank you
Written by a customer while visiting Filterbuy
Customer Rating
1
Filter whistles
on December 17, 2024
Posted by: Anonymous
Previously bought the MERV 8 and had no problem. Upgraded to the MERV 11 and now I get a whistle when the system turns on. Trying to return this product.
Written by a customer while visiting Filterbuy
Customer Rating
5
Almost
on December 16, 2024
Posted by: Anonymous
It doesnt quite fit. Its close but I needed another half inch.
Written by a customer while visiting Filterbuy
Customer Rating
4
What you see is not what you get.
on December 15, 2024
Posted by: Christoph H.
Actual size is 1/2 less in height and width, and 1/4 less in thickness.Thats whats written also on the filter, when you get it.So profit maximization takes its toll.Especially when you need the size for a perfect fit, because MERV 11 does not work when the air passes by due to a sloppy fit.3 stars because customer care was nice to take it back and allow me to exchange to a custom fit, which fits.
Written by a customer while visiting Filterbuy
Customer Rating
5
Look very nice, fit exactly
on December 14, 2024
Posted by: Anonymous
Look very nice, fit exactly how I needed. Grateful they made the size an shipped it very quickly.
Written by a customer while visiting Filterbuy
Customer Rating
2
Too small to stay in
on December 12, 2024
Posted by: Ed O.
Too small to stay in place in overhead duct. Cancel order for any more filters.
Written by a customer while visiting Filterbuy