Monoprice 18AWG 4-Conductor CMP Plenum Speaker Wire - 1000ft, Black

Monoprice provides a Lifetime Warranty on all cables, giving you long-term protection and peace of mind. This plenum-rated speaker cable has an outer jacket specially treated to resist the spread of fire and is CMP rated by Underwriters Laboratories (UL) for safe use in the plenum ducts and airspaces of commercial class buildings. Specifications: 4-conductor, 18AWG, 1000ft, color: Black. A reliable choice when you need a plenum-approved speaker wire for commercial or high-safety installations.