I recently purchased two 20x225x4 inch…
I recently purchased two 20x225x4 inch air filters Merv 13 which cost me about 50 bucks. They are too narrow and too short to properly fit in true 20x25x4 sized slot in the air conditioning system. Air flow goes all around them rendering them useless. I contacted customer service and they said you can return them, but I have to pay the shippng cost which came out to about $19. What a rip off. Why would they make them undersized and advertise them as 20x25x4. Last time I do business with this company. I am going to make sure as many people as I can are informed.