Customer reviews from Filterbuy
Filterbuy - 18x30x1 MERV 8 Dust & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (4-Pack) - Silver
Average customer rating
4.7
(5,825 Reviews)
Rating breakdown 5,825 reviews
5 Stars
4,840
4 Stars
491
3 Stars
209
2 Stars
108
1 Star
177
Customer Reviews for Filterbuy - 18x30x1 MERV 8 Dust & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (4-Pack) - Silver
Customer Rating
5
Best service for filters
on February 8, 2026
Posted by: Anonymous
They are priced right and shipped fast. Best place to get filters to help keep your HVAC working properly. My HVAC tech told me about you guys, and he was right!
Written by a customer while visiting Filterbuy
Customer Rating
5
Furnace Filter
on February 7, 2026
Posted by: Anonymous
These filters seem to do the job. House ducts are clean which to me means the filters work.
Written by a customer while visiting Filterbuy
Customer Rating
5
A most economic alternative
on February 7, 2026
Posted by: Anonymous
A cost effective way to replace your furnace filter monthly reducing blower workload and maximizing air filtration. You basically can't go wrong.
Written by a customer while visiting Filterbuy
Customer Rating
5
I was very pleased with
on February 6, 2026
Posted by: Anonymous
I was very pleased with the promptness and product.
Written by a customer while visiting Filterbuy
Customer Rating
1
Filters dont fit snuggly
on October 15, 2025
Posted by: Anonymous
The filters are off size a little so they dont fit snuggly. They fall and lay on the grate and get sucked back up when air comes on. I have 9 left. I request a replacement order. I can send the others back at your expense for your review. I am afraid to reorder again. Dont want the same problem twice
Written by a customer while visiting Filterbuy
Customer Rating
1
Too Small
on October 13, 2025
Posted by: Anonymous
Website states size is 13-3/8" x 23-3/8" x 3/4", (0. 375). The actual size is 13. 188 x 24. 188. Big box hardware store actual size is 13. 75 x 23. 75. Filter is sucked into the return.
Written by a customer while visiting Filterbuy
Customer Rating
5
Great Filter-Reliable Replacement Program
on October 10, 2025
Posted by: Anonymous
Perfect fit for hard to find size (20x23). Seems to perform as claimed by seller, as filter is completely covered with dirt and dust when it is changed at the recommended time intervals.I set filter change reminders on my IPhone to help me remember when to replace dirty filters. I signed up for auto ship so I wont run out of filters and to receive a better lower price.
Written by a customer while visiting Filterbuy
Customer Rating
5
Air filter
on October 9, 2025
Posted by: Anonymous
Haven't used them yet, bt the ordering process was great
Written by a customer while visiting Filterbuy