Product Description Southwire 68580001 250-Foot 12-Gauge 2-Conductor Type MC Conduit, Aluminum From the Manufacturer May be used for branch, feeder, and service power distribution in commercial, industrial, institutional, and multi-residential construction. Suitable for installation in places of assembly and theaters. It is flame resistant, heat resistant PVC insulation with flame, oil, and gasoline resistant nylon jacket. Rated as types THHN and THWN