You're correct in that the author is very proud of himself, but I would also agree that he is correct with his information. KDF and activated carbon is a great combination for water filtration. I've used them in home systems for years. However, I was unaware that the combination is available in RV filters so I will be scouring the web for confirmation and will report back. Another thought to share on the KDF is that is should be kept wet. If left to dry, it will form a solid mass. Some caps or plugs may be in order to keep water in the filter during transport and storage.