A:
If you can stand on the center of the hatch cover without it bowing or flexing and the hatch isn't to large, then you may be able to install one on it.
My Tracker boat came with one of these installed on the fiberglass rear storage compartment lid and it is holding up fine. My hatch lid is about an inch thick, but it is also 3 feet wide and 2 feet long. The smaller the hatch size the better. See if you can install a piece of 3/4" marine plywood (a little smaller than the lid) to the bottom of the hatch lid to add strength.
One other note, the bottom of the tube has no bottom on it, so water can run through it and down into the storage area.