Carlon 1-Gang 18 cu. in. Blue PVC New Work Electrical Switch and Outlet Box Description: The Carlon Zip Box Blue 1-Gang 18 cu. in. Non-Metallic Switch and Outlet Box is designed for use with non-metallic sheathed cable in accordance with Article 314 of the National Electric Code. Great for residential and light commercial applications, the box is made with PVC, is listed for use with masonry walls and can be used with 90 degree C conductors. It meets NEMA OS-2 and is fire rated and UL Listed for safety. Specification: Great for residential and light commercial use Can be used with masonry walls Thermoplastic construction resists rust and will not conduct electricity Sized for standard devices and switches Captive nails for mounting included Permissible for use with 90 degree C conductors Meets NEMA OS-2 UL classified for 2-hour fire wall and/or fire ceiling box