Black Large Deck Seal Connector 1.57" Cables -.47"-.59"For connectors up to Ø40mm (1.57"). Cables from 12-15mm (0.47"-0.59")The only guaranteed and proven watertight installation for your antenna and navlight cables! The DS40-P provides waterproof cable routing and is produced in high impact plastic for Cables from 12-15mm (0.47"-0.59").