The Apex is a fully contained truck camper that provides you with unlimited flexibility, durability, and comfort. And the Apex leads the industry with its unique "basement" design. The holding and fresh water tanks are stored below the floor in an insulated basement insuring all season usability. The other benefit to placing the tanks in the floor is the lowered center of gravity, producing stable and well mannered handling characteristics. Combine all of this with the strength and light weight of the aluminum frame and composite construction and you're ready for anything.