The 22 cu. in. PVC New Work Electrical Outlet Box is designed to work with non-metallic sheathed cable in accordance with Article 314 of the NEC. Perfect for use in residential and light commercial applications. This electrical box is manufactured with non-conductive PVC for durability and is fire rated 2 hours and UL Listed to help ensure safety. Ideal for use with masonry walls. Made of rust-resistant thermoplastic for durability. Appropriately sized for standard devices and switches.