Ancor safety duplex cable features red and yellow Marine Grade primary conductors (correctly color-coded to ABYC standards) in a white common jacket that is made for easy removal while providing the best abrasion resistance available. Safety Duplex Cable is color coded so that the negative conductor is yellow to avoid confusion with the AC Hot wire which is black. With safety duplex cable there is no confusion, this is for DC use. Sold by the foot, minimum 20 ft