While we all need AC/Furnace filters I think that some are overpriced. I don't want to take the chance with a "great buy" filter, but then again, I don't want to be screwed with the price or quality.So far I am pleased with your product and the convenience of getting it shipped to my door. BTW...4 stars is the best I give anyone (including my GF). There's always room to improve.
My intent was to make 1 purchase for an annual supply, which I did, however, my bank statement shows filterbuy as a recurring charge in my checking account which I did not want nor did I authorize it.
So far so good. They were easy to install. These are the first filters I have ever bought. I can not access their performance yet because I have not had them for more than two weeks. The construction and materials made in America drew me to your product.