SCANSTRUT DECK SEALS. Waterproof cable routing. The only guaranteed and proven watertight installation for your antenna & navlight cables. Made with marine grade, polished 316 stainless steel. All models IPX6 and IPX7 tested and approved. Aesthetic dome-shaped profile provides a stronger, impact resistant design. Split-seal option does not require connector removal during install. Longlife stainless fastenings with captive nuts. CABLES UP TO 18MM (. 71) SELF DRILL ONLY.