Customer reviews from Filterbuy
Filterbuy - 20x30x4 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (4-Pack) - Gold
Average customer rating
4
(1,144 Reviews)
Rating breakdown 1,144 reviews
5 Stars
660
4 Stars
148
3 Stars
119
2 Stars
91
1 Star
126
Customer Reviews for Filterbuy - 20x30x4 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (4-Pack) - Gold
Customer Rating
1
Less filter capacity
on February 7, 2026
Posted by: Anonymous
Less surface area due to number of folds and depth of filter. Not worth the money since it is NOT comparable to other quality filters.
Written by a customer while visiting Filterbuy
Customer Rating
5
Good filter, good price
on January 4, 2026
Posted by: Anonymous
My HVAC system was replaced last summer and I had to start buying filters which were much larger than my old ones. Filterbuy offered the right size for a very reasonable price. I'm now going to order more!
Written by a customer while visiting Filterbuy
Customer Rating
1
The filters are to small
on October 10, 2025
Posted by: Anonymous
The filters are to small 4 inches are not the actual size very disappointed
Written by a customer while visiting Filterbuy
Customer Rating
1
They dont fit there not20x20x4
on October 8, 2025
Posted by: Anonymous
Will never buy this product again stuck with stack of filters cant use
Written by a customer while visiting Filterbuy
Customer Rating
5
Good place to get your
on October 4, 2025
Posted by: Erhan S.
Good place to get your filters for your air conditioning unit
Written by a customer while visiting Filterbuy
Customer Rating
5
Vary good quality air filter
on September 28, 2025
Posted by: Val W.
Vary good quality air filter I am pleased with this filter
Written by a customer while visiting Filterbuy
Customer Rating
5
Good quality filters for the
on September 22, 2025
Posted by: Randy W.
Good quality filters for the price and made in the USA!
Written by a customer while visiting Filterbuy
Customer Rating
3
Good price. Although the box
on September 18, 2025
Posted by: Cory F.
Good price. Although the box is the right size filter they are thinner the 4in filter. Too much wiggle room when inserted into the AC
Written by a customer while visiting Filterbuy