Water Jacket Rub RailPrevents rust from forming on stainless steel overlaysSpecially designed "pockets" in the primary rub rail promotes oxygen flow between the overlay and primary rub rail allowing thebackside of the insert to dryPermits fresh water rinse between the overlay and primary rub rail to eliminate caustic salt depositsSeveral water jacket rub rails accept both 3/4″ and 1″ stainless steel overlays, achieving different looks on various boat models withthe same rub railDrilled and countersunk on 8" centersColor: WHCWidth: 1"Height: 1-13/16"Length: 20'