I wanted to mount a water presure guage inside my Tracer 3150's Universal Dock Station. Since the internal walls are only 1/8" plywood, I added 3/4" plywood on the inside wall of the pass though storage area as a backer board. I used PL375 Adhesive by Loctite and some 3/4" screws and washers. Came out nice and solid. Universal Water Dock Station pictures by joey67usmc - Photobucket