The Fibox ARCA 504021S is a polycarbonate electrical enclosure designed for use in industrial and commercial applications, such as heavy-duty industrial, water, and wastewater applications. This UL-approved NEMA 4X polycarbonate enclosure is designed to withstand weather and corrosion and is resistant to acids and alkalis. It features stainless steel hinges, latch, and captive mounting screws, as well as high impact, UV-stabilized polycarbonate construction. The ARCA 504021S enclosure offers easy access and a tight seal, while an optional sealing gasket ensures an extra measure of protection from the elements.