Scanstrut

Using marine-rated cable is a must for your boat's stereo system, but you also need watertight installation for your antenna and nav light cables. This Scanstrut cable seal is easy to install, impact-resistant, and looks great. It's designed for cables from 0.08" to 0.24" (2 to 6mm). With a tapered bung and a closed-cell base seal, these dome-shaped seals are rugged and water-resistant. Captive nuts make assembly easy and they can be used for repeat installations. The package includes pre-drilled and blank inner seals to make every installation easier. Choose from gray or black plastic.