Customer reviews from Filterbuy
Filterbuy - 18x30x4 MERV 8 Dust & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (4-Pack) - Silver
Average customer rating
4.2
(981 Reviews)
Rating breakdown 981 reviews
5 Stars
657
4 Stars
100
3 Stars
77
2 Stars
67
1 Star
80
Customer Reviews for Filterbuy - 18x30x4 MERV 8 Dust & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (4-Pack) - Silver
Customer Rating
5
1st time to use filters
on August 25, 2025
Posted by: Anonymous
1st time to use filters and Im happy with the results so far.
Written by a customer while visiting Filterbuy
Customer Rating
5
I have not had opportunity
on August 25, 2025
Posted by: Betsy K.
I have not had opportunity to use my first filter but it is assuring to me as a widow to have these on hand for home function and maintenance. This is especially true during the harsh winter months.
Written by a customer while visiting Filterbuy
Customer Rating
5
good filter
on August 25, 2025
Posted by: Anonymous
I attach these to a box fan for kitty liter dust filtration. works great, the extra thickness makes them last longer.
Written by a customer while visiting Filterbuy
Customer Rating
5
Happy with this filter brand.
on August 25, 2025
Posted by: Erin N.
Happy with this filter brand. Seems to last longer than other brands. Website makes it easy and efficient for ordering. Thanks!
Written by a customer while visiting Filterbuy
Customer Rating
5
Just Right
on August 23, 2025
Posted by: Anonymous
We modified our filter opening from 1 to 4. We could only open it to 3. 7, and this filter fit perfectly, plus we did not want to go high than Merv 8, to put less strain on our fan, and again the filter was perfect, and was at our door 24 hours after ordering.
Written by a customer while visiting Filterbuy
Customer Rating
5
Looks good
on August 18, 2025
Posted by: Kathryn C.
Just got these so I haven't installed one yet. But they look good.
Written by a customer while visiting Filterbuy
Customer Rating
1
They advertised as a Merv
on August 12, 2025
Posted by: Rena D.
They advertised as a Merv 8 , 4 wide, but they are not 4inches wide. They dont fit my furnace compartment as they should.
Written by a customer while visiting Filterbuy
Customer Rating
1
Measurements misleading - does not
on August 10, 2025
Posted by: Anonymous
Measurements misleading - does not even come close to 4!
Written by a customer while visiting Filterbuy