SCANSTRUT DECK SEALS. Waterproof cable routing. The only guaranteed and proven watertight installation for your antenna & navlight cables. Made with super-tough plastic. All models IPX6 and IPX7 tested and approved. Aesthetic dome-shaped profile provides a stronger, impact resistant design. Supplied with both pre-drilled and blank inner seals. Split-seal option does not require connector removal during install. Longlife stainless fastenings with captive nuts. CONNECTORS UP TO 21MM (.83") CABLES FROM 9-14MM (.35"-.55")