I did not read the fine print. Even though the "headline" said 16x25x4, all dimensions were less than that and filter was too small for my furnace. Additionally I did not understand about MERV ratings so the filters were much flimsier than I wanted. I ended out giving the filters away and am now more educated about what to order in the future.
I do not know yet. I dont need anymore filters anytime soon. Please take my name off your follow up. I think the filters are fine. But it may be 6 months and I dont want an auto ship at this time.