These 3R series metal boxes are the best of the best. With a hinged cover, these powder-coated galvanized metal boxes provide excellent protection of junctions and designs. Ideal for outdoor applications, these 3R series metal boxes are designed to meet NEMA 1 and 3 ratings. Also, the external mounting brackets allow installation on vertical surfaces without the need to open the cover and expose internal components. With 5 day modifications available, these 3R series metal boxes are perfect for your design.