100FT 18 Gauge 4 Conductor Speaker Wire Cable Pure Bare Copper IN WALL CMP Rated
Plenum Rated (CMP) ?. 100' Feet Speaker Wire 18 Gauge 4-Conductor CMP-Rated. The 100% pure oxygen-free copper conductors are sheathed in color-coded jackets contained with the main CMP-rated jacket. Oxygen-Free Copper Conductors ?.