Customer reviews from Filterbuy
Filterbuy - 21.5x21.5x1 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (3-Pack) - Gold
Average customer rating
4.6
(3,950 Reviews)
Rating breakdown 3,950 reviews
5 Stars
3,136
4 Stars
393
3 Stars
198
2 Stars
89
1 Star
134
Customer Reviews for Filterbuy - 21.5x21.5x1 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (3-Pack) - Gold
Customer Rating
5
Very good filters I tell
on June 24, 2025
Posted by: Anonymous
Very good filters I tell all my friends about them
Written by a customer while visiting Filterbuy
Customer Rating
5
New Filters for New A/C System
on June 24, 2025
Posted by: Anonymous
Put in an order for new filters for a new A/C system we just had installed. Different size and MERV than I have been ordering the past 10 years and was amazed that the new filters came in the next day! Great service and great product.
Written by a customer while visiting Filterbuy
Customer Rating
5
Great Products and Great Service
on June 23, 2025
Posted by: Jon J.
Thanks for your constantly quick and effective service.
Written by a customer while visiting Filterbuy
Customer Rating
3
Filter review
on June 23, 2025
Posted by: Anonymous
Nice filter but a little to big had to squeeze it in. Filter bent a little
Written by a customer while visiting Filterbuy
Customer Rating
5
The correct size was 18x18x1
on June 20, 2025
Posted by: Anonymous
The correct size was 18x18x1 at 11 MERV. They seem to be doing well. Thank you for this unusual size.
Written by a customer while visiting Filterbuy
Customer Rating
1
Frame is a 1/4 off
on June 19, 2025
Posted by: Eddie H.
Frame is a 1/4 off in length. I return them back. They sent 6 more, still short and the actual measurements are off in length. I like your filter but I need 29 and 3/4. Not 29 and 1/2.
Written by a customer while visiting Filterbuy
Customer Rating
5
Better than the supply house
on June 17, 2025
Posted by: Eduardo L.
Even in a crunch they deliver on time, the variety of choices is much better than any supply house. I use them in my home and for my AC business.
Written by a customer while visiting Filterbuy
Customer Rating
1
I ordered the same size
on June 16, 2025
Posted by: Anonymous
I ordered the same size I always order and the filters did not fit. Way too big. The size I needed was wrote on the side of the filters as usual. Im not sure if they got mislabeled somehow or what. Very disappointed at a waste of money.
Written by a customer while visiting Filterbuy