Customer reviews from Filterbuy
Filterbuy - 20x20x4 MERV 8 Dust & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (6-Pack) - Silver
Average customer rating
4.6
(7,979 Reviews)
Rating breakdown 7,979 reviews
5 Stars
6,412
4 Stars
704
3 Stars
346
2 Stars
211
1 Star
306
Customer Reviews for Filterbuy - 20x20x4 MERV 8 Dust & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (6-Pack) - Silver
Customer Rating
5
Great filter for competitive price
on May 4, 2026
Posted by: Customer
Great filter for competitive price. Fit was the exact size as advertised, unlike competitors.
Written by a customer while visiting Filterbuy
Customer Rating
5
14x14x1 MERV 8
on May 4, 2026
Posted by: Customer
Quality of this filter as well as the price and delivery makes fitting it easy for a 74 yr woman to install. The size is perfect for a hard to reach ceiling vent. Highly recommend this filter as well as this company.
Written by a customer while visiting Filterbuy
Customer Rating
5
Great Product
on May 3, 2026
Posted by: Customer
Very effective in keeping house dust free. Used for tears.
Written by a customer while visiting Filterbuy
Customer Rating
1
I got a new furnace
on May 2, 2026
Posted by: Customer
I got a new furnace and the filter size is now is 16x25x1
Written by a customer while visiting Filterbuy
Customer Rating
5
I buy 4 every year
on May 2, 2026
Posted by: Customer
I buy 4 every year as they work well for my townhome. .
Written by a customer while visiting Filterbuy
Customer Rating
5
oh no
on May 2, 2026
Posted by: Customer
might be a good choice if i ordered the right size--ugh
Written by a customer while visiting Filterbuy
Customer Rating
5
Prompt Service. Excellent Product.
on May 2, 2026
Posted by: Customer
Filterbuy supplies my A/C filters through their reliable auto shipment process. The filters arrive on time and in good condition. Regular monthly change of the filters maintains my A/C in optimum operating condition. Filterbuy should be evewrbody's source for filtersa of all kinds.
Written by a customer while visiting Filterbuy
Customer Rating
1
Filters are way too small.
on May 2, 2026
Posted by: Customer
Filters are way too small. They are over 1/2 inch in each direction too small. They are not 18x24. Will probably have to throw these away.
Written by a customer while visiting Filterbuy