Dayton Audio 3106BF0E RG-6/U Quad Shield Copper Clad Coaxial Cable 250 ft. The preferred A/V cable for inhospitable environments Four layers of shielding reject EM and RF interference 18 AWG copper-clad steel center conductor for maximum durability and signal purity Great for creating custom length A/V cables UL, C-UL listed, and CMG rated to meet applicable standards