Customer reviews from Filterbuy
Filterbuy - 18x25x4 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (1-Pack) - Gold
Average customer rating
4
(1,169 Reviews)
Rating breakdown 1,169 reviews
5 Stars
677
4 Stars
150
3 Stars
121
2 Stars
92
1 Star
129
Customer Reviews for Filterbuy - 18x25x4 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (1-Pack) - Gold
Customer Rating
5
Just installed the filter but
on August 7, 2025
Posted by: Mitchell Z.
Just installed the filter but so far its working great. And the price is fair
Written by a customer while visiting Filterbuy
Customer Rating
2
Poor Fitment
on August 5, 2025
Posted by: Anonymous
Less pleats compared to other brands and is undersized compared to others. Will not purchase again.
Written by a customer while visiting Filterbuy
Customer Rating
1
ordered 16x25x4 filters are way
on July 31, 2025
Posted by: Anonymous
ordered 16x25x4 filters are way to small had to rig installation so filter would stay in place
Written by a customer while visiting Filterbuy
Customer Rating
1
Does not replace 4" Honeywell filters. Actual size is 3-5/8".
on July 31, 2025
Posted by: Hayes H.
I purchased eighteen of these filter because they are labelled "4 inch media filters". The actual size is 3-5/8" so they do not fit my Honeywell filter housing.
Written by a customer while visiting Filterbuy
Customer Rating
1
Do not buy if you need Honeywell size filters
on July 31, 2025
Posted by: Hayes H.
I purchased eighteen of these filter because they are labelled "4 inch media filters". The actual size is 3-5/8" so they do not fit my Honeywell filter housing.
Written by a customer while visiting Filterbuy
Customer Rating
5
Air Filter
on July 24, 2025
Posted by: Charma O.
We've been using these filters for several years & like them very much. The service from Filter Buy is great.
Written by a customer while visiting Filterbuy
Customer Rating
1
"Four Inch" Filters Measure 3-5/8"
on July 22, 2025
Posted by: Hayes H.
I just ordered eighteen of the "four inch" thick pleated filters and the do not fit my units. It would be helpful if the actual measurements were made clear on the website. Don't buy these if you have a Honeywell 4" thick filter.
Written by a customer while visiting Filterbuy
Customer Rating
5
Ill let you know this
on July 22, 2025
Posted by: Anonymous
Ill let you know this fall when I put the new ones in my furnace
Written by a customer while visiting Filterbuy