Customer reviews from Filterbuy
Filterbuy - 9x30x1 MERV 13 Smoke & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (3-Pack) - Blue
Average customer rating
4.6
(3,442 Reviews)
Rating breakdown 3,442 reviews
5 Stars
2,730
4 Stars
306
3 Stars
187
2 Stars
73
1 Star
146
Customer Reviews for Filterbuy - 9x30x1 MERV 13 Smoke & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (3-Pack) - Blue
Customer Rating
3
1 inch is not.75 as
on October 13, 2026
Posted by: Customer
1 inch is not.75 as I was told. My filter is ecactly.75. Had to crush the sides to make it fit and made some cuts to make it work. Otherwise it appears okk
Written by a customer while visiting Filterbuy
Customer Rating
5
Very pleased!
on October 12, 2026
Posted by: Customer
Thank you for making the purchase of our odd-sized filters so very easy and pleasant. We are all set for awhile. Nice quality too!
Written by a customer while visiting Filterbuy
Customer Rating
5
The best
on October 11, 2026
Posted by: Customer
Best filters I have ordered…always on time and last the at least 2 months
Written by a customer while visiting Filterbuy
Customer Rating
5
Nice and easy site to
on October 10, 2026
Posted by: Customer
Nice and easy site to use, prices are really good highly recommended
Written by a customer while visiting Filterbuy
Customer Rating
5
Great way to buy filters!
on October 8, 2026
Posted by: Customer
I was pleased to find an American made source for filters that saves me money and delivers them right to my front door fast. The filters are as good or better quality than any I’ve used in the past. I highly recommend that you give Filterbuy a try.
Written by a customer while visiting Filterbuy
Customer Rating
1
They are sized small. They
on October 7, 2026
Posted by: Customer
They are sized small. They are 17 1/2”x 23 3/8”. They get sucked up
Written by a customer while visiting Filterbuy
Customer Rating
5
Was told 13 is not
on October 7, 2026
Posted by: Customer
Was told 13 is not good for furnace fan and should not be used
Written by a customer while visiting Filterbuy
Customer Rating
4
Filter is fine. Nothing special
on October 5, 2026
Posted by: Customer
Filter is fine. Nothing special but the price is hard to beat.
The emails after the purchase though! My lord. Talk about being spammed!
The emails after the purchase though! My lord. Talk about being spammed!
Written by a customer while visiting Filterbuy