I gave a 5 star rating because it was a perfect fit. It has only been installed for one month and I have not checked it yet. Thanks for the reminder. I'll let you know. Fingers crossed.
I have ordered these filters for more than 5 years and have always been impressed with their performance. It can be judged by how dirty they get which is a good feature for filters to have!
I really appreciate these filters. My HVAC systems are very important to me and I feel these Merv 11 filters are good for my family's health and protect the system well. I just cleaned the coils and they were very clean after the full seasone.