They're on sale at 30% off so they're worth the investment for 3 and Amazon has a great return policy. So if nothing good comes back... I think they are very well made and designed for rough use. I don't see any airflow issues in my system, although they are rated merv11 which means they capture more fine particles etc and Expedia will if you have pets. They are a bit difficult to install and it wouldn't be a big problem if they fit, but as many have suggested they are actually a bit small... I think it's like they fit most holes but the ceilings make the installation really difficult. ...hopefully I can put the edge seals in place to fit better...everyone says they seem like a great option and stop wasting money on disposables!
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