Filters fit perfectly. My only suggestion would be for you to ship my monthly order of all six of my filters to me in one box, not three. Very wasteful.
This is my second order for this filter. I have one return for my A/C which is located in my family room. The filter on the air handler is hard to replace due to poor installation. Therefore I have installed a second filter in the return register which became my main filter. The register filter is a size not found in locate stores. Found Filterbuy filters on line and decided to give them a try. Good choice. They are well made and fit without any problems. They are a three month filter so I buy one package of 4 a year. I am well satisfied.