Customer reviews from Filterbuy
Filterbuy - 15x20x4 MERV 13 Smoke & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (5-Pack) - Blue
Average customer rating
4.4
(5,900 Reviews)
Rating breakdown 5,900 reviews
5 Stars
4,402
4 Stars
555
3 Stars
405
2 Stars
201
1 Star
337
Customer Reviews for Filterbuy - 15x20x4 MERV 13 Smoke & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (5-Pack) - Blue
Customer Rating
5
Great service and products
on June 17, 2026
Posted by: Customer
Got first time furnace filters fast and efficiently
Written by a customer while visiting Filterbuy
Customer Rating
5
Simple
on June 17, 2026
Posted by: Customer
Great filters. Best of all I don’t have to think about it. They automatically come in the mail and is a great reminder to replace the filters on a regular basis.
Written by a customer while visiting Filterbuy
Customer Rating
5
4 in x 20 x 20 filters merv 13
on June 17, 2026
Posted by: Customer
Great fits the slot inlike the 4in i had bought earlier from another source
Written by a customer while visiting Filterbuy
Customer Rating
5
Excellent buy
on June 15, 2026
Posted by: Customer
The shipping was quick. The filter seems to be working well. With two old shedding pugs, the air in my house needs all the help it can get. My allergies seem to be better. If they really do last 3 months, then this was a fantastic buy. Only time will tell.
Written by a customer while visiting Filterbuy
Customer Rating
5
The Best Filter
on June 14, 2026
Posted by: Customer
My other house was destroyed by a F3 tornado. I built a new house and came to y’all to get Quality filters. Thank all of you so very much. Kelly Griggs.
Written by a customer while visiting Filterbuy
Customer Rating
5
Filters are coming too fast
on June 13, 2026
Posted by: Customer
The auto-shipment of filters to assure that I have a clean filter about once a month doesn't account for long periods where the furnace (&/or A/C) doesn't turn on due to very moderate temperatures. I now have 9 filters for the next 6 months
Written by a customer while visiting Filterbuy
Customer Rating
5
Merv13 20x25x5
on June 13, 2026
Posted by: Customer
It’s fits perfectly, made well and was a good price
Written by a customer while visiting Filterbuy
Customer Rating
2
Geothermal Furnace filters
on June 12, 2026
Posted by: Customer
3 of the filters I received were glued together and damaged.
Written by a customer while visiting Filterbuy