Ancor 18/2 100' Spool Tinned Copper Duplex

The Ancor 18/2 100' Spool Tinned Copper Duplex cable is the backbone of reliable marine electrical systems for boaters who demand corrosion resistance and long service life in salt and freshwater environments. This flat duplex cable features a red and yellow conductor pair housed in a white common jacket, making polarity identification quick and foolproof during installation. Built for everything from running accessory circuits to managing dual-function safety systems, this spool gives you the length needed for comprehensive rewiring, repairs, or upgrades on boats of all sizes without multiple trips to the supplier.

Each conductor is stranded from tinned copper—the marine industry standard that resists oxidation and corrosion far better than bare copper, especially critical in saltwater and high-humidity conditions where galvanic attack threatens bare connections. The 18 AWG (American Wire Gauge) rating handles moderate-draw circuits efficiently while remaining flexible enough to route through tight cabin spaces and behind panels. The flat duplex profile reduces bulk compared to round cable, making it easier to dress along gunwales, through bulkheads, and under flooring without creating trip hazards or pinch points. At 100 feet per spool, you eliminate waste and have enough reserve for future modifications.

Experienced anglers and cruisers rely on Ancor duplex cable for nav light circuits, bilge pump wiring, and secondary battery systems where quality cannot be compromised. The marine-grade jacket resists UV damage, ozone, and temperature swings from engine rooms to exposed deck installations. Whether you're rewiring an aging center console, adding a backup fuel pump circuit, or building a complete electrical harness for a restoration project, this 100-foot spool provides the length and reliability needed for professional-grade results that will outlast seasons on the water.