Customer reviews from Filterbuy
Filterbuy - 18x20x1 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (5-Pack) - Gold
Average customer rating
4.6
(3,989 Reviews)
Rating breakdown 3,989 reviews
5 Stars
3,165
4 Stars
398
3 Stars
200
2 Stars
90
1 Star
136
Customer Reviews for Filterbuy - 18x20x1 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (5-Pack) - Gold
Customer Rating
4
Tight fit
on October 31, 2026
Posted by: Customer
Second order where the filters are a very tight fit compared to previous orders. Might be a good thing ensuring all air passes through the filter but it is a challenge to get into the carrier.
Written by a customer while visiting Filterbuy
Customer Rating
5
AC filters
on October 30, 2026
Posted by: Customer
Very good quality and the best part they made in America
Written by a customer while visiting Filterbuy
Customer Rating
5
Home
on October 30, 2026
Posted by: Customer
I think these filters are great and at a good price.
Written by a customer while visiting Filterbuy
Customer Rating
5
Difficult to find filters made easy
on October 28, 2026
Posted by: Customer
My local hardware stores did not stock the filter I needed so I found Filterbuy on line and had a great deal at my doorstep in days. That was easy!
Written by a customer while visiting Filterbuy
Customer Rating
5
Been my go-to for a number of years!
on October 28, 2026
Posted by: Customer
Never had any problems with the product from these folks. They don’t force you to use more expensive products, what you decide is what you get, at excellent pricing. Not sure which filter quality is best for you, check out their data and make an “informed” decision.
Written by a customer while visiting Filterbuy
Customer Rating
5
Well made. had to order from
on October 26, 2026
Posted by: Customer
Well made. had to order from you guys stores locally did not have the size i needed.
Written by a customer while visiting Filterbuy
Customer Rating
5
Better than expected
on October 26, 2026
Posted by: Customer
Really fast, great product Set for the next year ans a half...
Written by a customer while visiting Filterbuy
Customer Rating
4
I use them for filtration
on October 24, 2026
Posted by: Customer
I use them for filtration in my semi truck and they work well
Written by a customer while visiting Filterbuy