Under Chassis Storage Boxes

They are not in any way designed to be watertight. I'm currently fabricating one like that Lippert model because I have had that model! Worked ok for hoses, leveling blocks, and sewer fittings, but I didn't care for the poly drawers because they were not only not watertight but also sagged. My version has safety deposit box - style drawers I fabricated out of aluminum with watertight lid and locking paddle latches. Just dropped the boxes off to be coated with Line-X.