Customer reviews from Filterbuy
Filterbuy - 20x25x4 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (2-Pack) - Gold
Average customer rating
4.4
(7,001 Reviews)
Rating breakdown 7,001 reviews
5 Stars
5,169
4 Stars
754
3 Stars
438
2 Stars
245
1 Star
395
Customer Reviews for Filterbuy - 20x25x4 MERV 11 Pet & Allergy Defense, Electrostatic Pleated HVAC AC Furnace Air Filters Replacement (2-Pack) - Gold
Customer Rating
5
So far, so good. All
on September 13, 2025
Posted by: Marie N.
So far, so good. All of the above seem to be fit for purpose.
Written by a customer while visiting Filterbuy
Customer Rating
5
Good quality, they fit in
on September 13, 2025
Posted by: Anonymous
Good quality, they fit in my furnace better than the one spot uptown and its great to have them delivered. Highly recommend.
Written by a customer while visiting Filterbuy
Customer Rating
3
12*30*1 MERV 11 Pleated Air Filter
on September 12, 2025
Posted by: Anonymous
Product was slightly too big and had to modified to fit in the opening, not a complete seal but at least got it to fit in my opening.
Written by a customer while visiting Filterbuy
Customer Rating
2
You keep changing the sizes
on September 12, 2025
Posted by: Anonymous
You keep changing the sizes by little amounts. These didnt fit well. SO FRUSTRATING. I had to jam it in and am sure will need to rip it apart to get it out
Written by a customer while visiting Filterbuy
Customer Rating
1
Look nice Do NOT Fit
on September 11, 2025
Posted by: Marion K.
The filters we purchased DO NOT FIT OUR FURNACE.We bought 20x20x4 as we have been doing for many years, but your 20x20x4 did not fit our machine.
Written by a customer while visiting Filterbuy
Customer Rating
3
Bent on arrival
on September 11, 2025
Posted by: Anonymous
This is the second time I've purchased these large filters online from 2 different companies. Both times the packaging has been crushed around the corners. The one's I received from Filter Buy can still be used after bending them back into shape. I just wish that they would reinforce the boxes, especially at the corners so the large filters could arrive undamaged. As for the quality of the filter, it looks to be good.
Written by a customer while visiting Filterbuy
Customer Rating
5
bought 14 x 20 and
on September 10, 2025
Posted by: Anonymous
bought 14 x 20 and 16 x 25 just installed will see in 3 months
Written by a customer while visiting Filterbuy
Customer Rating
5
Great fit
on September 10, 2025
Posted by: Anonymous
I really like these filters. This brand is the only type that fits in my HVAC unit.
Written by a customer while visiting Filterbuy