The SBBC-30ALI is an insulated marine grade aluminum enclosure measuring 30 inches wide, 30 inches high, and 15 inches deep. It features a single flush mounted door that has provisions for a padlock. The enclosure door drops down and the body lifts up, pivoting on the back edge, providing full access to the backflow. The solid sheet construction provides smooth edges and protection from vandalism and weather. Includes a wind-blocking rubber skirt and Polar Bearier bag provides an R30 insulation rating and protects the backflow from frost and moisture.