Non-Metallic Enclosure (Style B) - Weather Resistant - 19.17 in L x 14.64 in W x 7.85 in H - Acrylonitrile Butadiene Styrene (ABS) - Solid Cover - Gray. - External 19.17 x 14.64 x 7.85 Inches - Internal 18.33 x 13.75 x 7.6 Inches