Duplex Boat Cable is a type of multiconductor cable that is used in low-voltage AC applications and DC circuits. Pacer manufactures 14 AWG Duplex boat cable in-house in Sarasota FL, USA for the highest quality. It starts with finely stranded, Type III tinned copper conductors. These allow for maximum flexibility and prevention of corrosion. The PVC jacket helps 14 AWG Duplex Boat Cable with flexibility while serving to prevent moisture from building up. How does it achieve this? Well, the voids between wires are filled during the extrusion process. This leaves no room for moisture or air to build up. As an added bonus, a talcum powder coating is applied to the interior wires. This coating allows the outer jacket to be removed easily. Another reason 14 AWG Duplex boat cable is perfect for marine usage.This Duplex Boat Cable (EDMO# W14/2DC250) is 14 AWG, has red and black cables with a white jacket, and comes on a 250 ft spool.