I've been trying to cancel this subscription for a while because I simply have too many filters! Unfortunately, cancelling is not as easy as signing-up. Sure, they are good filters, but be sure you have room to store extras!
I change the furnace filter once a month and you can see what gets caught. Without filter changes the heat exchanger and AC coil would get coated with dirt.
I have been using these filters for a while & another filter company were sending promos for their filters. So I did some more research into Filterbuy as a company. There are 2 reasons I went with Filterbuy, MADE IN USA & they produce filters in Pittsburgh PA. I live in Pittsburgh so you have to support local!!!