Comprehensive's Ultraflex In-wall Speaker cable is your Hi-End answer to your professional installations. The jacket for these cables are CL3 rated and has per/ft markings to aid in the precise measuring and cutting for ease of use during installation. The Ultraflex In-wall speaker cabling comes in multiple configurations such as , 12, 14, and 16AWG, versions with 2 or 4 conductors. As well as our Lifetime Warranty, this UL rated cabling is RoHs compliant. and conforms to NEC 725. All of Comprehensive's Ultraflex In-wall cable comes available in 250ft., 500ft. or 1000ft. pull boxes. All of Comprehensive's Ultraflex In-wall Speaker cable is Hi-strand and made with 99.9% pure copper. "When it has to work, It has to be Comprehensive."