The Metal 2-gang 3/4 In. 5-outlet Gray Aluminum Weatherproof Electrical Box 5345-OB by Bell is designed for both interior and exterior walls. Its square shape and compact size make it perfect for any room. Made of durable aluminum, this waterproof electrical box is suitable for outlets and features a weatherproof design. With one knockout for wiring, this 5-outlet gang box is a reliable and efficient choice for electrical installations in commercial and industrial settings.