Customer reviews from Filterbuy
Filterbuy - 20x20x4 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (6-Pack) - Gold
Average customer rating
4.4
(7,006 Reviews)
Rating breakdown 7,006 reviews
5 Stars
5,173
4 Stars
754
3 Stars
439
2 Stars
245
1 Star
395
Customer Reviews for Filterbuy - 20x20x4 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (6-Pack) - Gold
Customer Rating
5
I've used these filters for
on October 10, 2020
Posted by: Anonymous
I've used these filters for about 3 years, and they provide the filtration that I feel is important.
Written by a customer while visiting Filterbuy
Customer Rating
5
Wrong size!
on October 10, 2020
Posted by: Anonymous
My fault I measured 3 to 4 times but had to bend the top a little to make it fit!
Written by a customer while visiting Filterbuy
Customer Rating
5
Why has it taken me
on October 10, 2020
Posted by: Mary-Ellen K.
Why has it taken me this long to do this? I have been buying the cut to fit filters for years and disliked all the options out there. Thank you Filterbuy for making the perfect sized filter so I dont have to do that anymore.No more running to the hardware store. Home delivery rocks!
Written by a customer while visiting Filterbuy
Customer Rating
5
Perfect
on October 9, 2020
Posted by: Anonymous
Perfect fit and well made. Be sure to order the Honeywell replacement if you have a Honeywell system. The 20x20x4 generic doesn't fit well.
Written by a customer while visiting Filterbuy
Customer Rating
5
At 1st I thought it
on October 9, 2020
Posted by: Homer P.
At 1st I thought it wasn't going fit. I put it in and it fit perfect. Also, its shaped like a box already, the original ones i used to buy, that cost more, came like an accordian, i had to open it up and put dividers. Great purchase. Very happy
Written by a customer while visiting Filterbuy
Customer Rating
5
Filter fit fine and I
on October 9, 2020
Posted by: Anonymous
Filter fit fine and I hope that they will last for about three months
Written by a customer while visiting Filterbuy
Customer Rating
5
Excellent product.
on October 9, 2020
Posted by: Anonymous
I am so glad I found your company. Excellent product for our unique application.
Written by a customer while visiting Filterbuy
Customer Rating
4
Custom Filter buy...
on October 8, 2020
Posted by: Russel S.
Eventually I will perfect the measurements I need to get the correct filter size. I needed to make adjustments on my first 2 orders. This one is very snug, but works without adjustment. The filters were almost literally a Life Saver with the terrible wildfires near us. See photo of a clean filter and one after 3 1/2 days use with all the doors and windows closed. AQI that I saw reached 626, but one night I was told it was into the 1100s. Outside was NOT a safe place to be and inside was saved by the constantly running HVAC with your filter. Thank You!!
Written by a customer while visiting Filterbuy