The filters work Wonderful there is only one problem they seem to not fit correctly we have to push a lot to get them in but otherwise they good Maybe am buying them to large maybe they have to be 22221 I don't know can you please email me and let me know what I am doing wrong thank you
I am well pleased with my filters. We had to install a new ac/heat unit in Aug of last year and was so glad to be able to locate a source for our new filters. Thank you for your fast and accurate service. MM
Had no difficulty in placing the order even though I had to change the size in order to fit our new AC/Heating system. Making the changes and placing the order went smoothly.