Super Blue BH525H 25 cubic inches electrical box is designed to not break or crack, even in extreme conditions. It is a non-metallic round hard shell electrical box that is easy to use. Mounted on an adjustable 11-1/2 inch to 18-1/2 inch hanger bar, this weatherproof box is highly reliable. This switch box is made with thermoplastic PVC for durability. Besides, the hard shell of this plastic electrical box resists flexing and holds its shape in bad conditions. This fire-rated and UL-listed single gang box that ensures safety is ideal for non-metallic sheathed cable.