Product review (3 stars): The filters are great the shipping was not
I have an aprilaire system and have been using aftermarket filters til now.  It has made alot of difference on my settings in my home so would hightly recommend you use the brand name.  the company i ordered them from took two weeks to get them to me after i called after week one and they had forgotten to ship them.  Then they said they would expidite (ok if expidite is a week the shipping industry is in trouble).