Customer reviews from Filterbuy
Filterbuy - 18x21x1 MERV 8 Dust & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (12-Pack) - Silver
Average customer rating
4.7
(5,912 Reviews)
Rating breakdown 5,912 reviews
5 Stars
4,905
4 Stars
499
3 Stars
213
2 Stars
113
1 Star
182
Customer Reviews for Filterbuy - 18x21x1 MERV 8 Dust & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (12-Pack) - Silver
Customer Rating
3
Fit changed
on June 24, 2025
Posted by: Anonymous
This latest batch is maybe 1/8" wider and taller than the prior batch-- enough it's hard to fit in the plenum. I think I was able to get it in there well enough to seal. But it will make me think before buying more.
Written by a customer while visiting Filterbuy
Customer Rating
3
so far, so good. Haven't
on June 23, 2025
Posted by: Suellen R.
so far, so good. Haven't used it long enough to tell yet.
Written by a customer while visiting Filterbuy
Customer Rating
5
filters
on June 23, 2025
Posted by: Anonymous
[This review was collected as part of a promotion.] simple ordering quick free shipment. what more can you say!!!!
Written by a customer while visiting Filterbuy
Customer Rating
5
Wide range of choices
on June 23, 2025
Posted by: Anonymous
I got exactly what I needed for my furnace at Filterbuy. Many, many sizes to choose from. The service is prompt and friendly too. I highly recommend.
Written by a customer while visiting Filterbuy
Customer Rating
5
Great AC Filters
on June 22, 2025
Posted by: Anonymous
[This review was collected as part of a promotion.] These filters are incredible. My AC was freezing up, so I call a repairman. Turns out, the filter that I originally bought was too thick. Luckily I had ordered these Merv 8 pleated filters. Thats all that I will buy from now on.
Written by a customer while visiting Filterbuy
Customer Rating
5
Recommend
on June 22, 2025
Posted by: Bobby R.
I recommend Filterbuy. com. Great quality, price and service.
Written by a customer while visiting Filterbuy
Customer Rating
5
Great Service!
on June 21, 2025
Posted by: Anonymous
Always great service. Product is excellent quality and competively priced. Quick shipment! I highly recommend.
Written by a customer while visiting Filterbuy
Customer Rating
2
Actual size is not selected size
on June 21, 2025
Posted by: Anonymous
If you want the dimensions advertised, exactly, make a special order. Otherwise it will be short 3/4 "
Written by a customer while visiting Filterbuy