Will continue to buy these great filters

I dont see a major difference in air quality but the coils in my package unit have been staying clean and the air flow seems improved

And more importantly the rigid edges and 2 inch design help it hold up to my heavy fan load

Great price for a 2 pleated filter too worked great good filter quick ship great this is the only filter that fits my furnace and it is an extremely odd size and hard to find this is a very high quality filter at an affordable price