Topaz's Weatherproof Double Gang 5-Hole Boxes are designed to use for wall or pole mounting of outdoor outlets, switches, and floodlights. Fabricated strategically from strong, durable, and lightweight copper-free aluminum and die-cast metal. Provides a 31 cu. in. capacity for easy accessibility and use. Precision manufactured for optimum performance and longevity, this product features a premium powder coat finish that ensures integrity for the long term. The box includes closure plugs, grounding screws, and mounting lugs. Additionally, its threaded hubs are 1/2 in. of an inch to fit your specific needs. This gang box is also both cULus Listed, UL Listed, and both 2011 NEC and NEMA 3R compliant for safe use in wet environments.