The SBBC-40ALHPI is an insulated marine grade aluminum enclosure measuring 41 inches wide, 39 inches high, and 24 inches deep. It features a center split design allowing the enclosure sides to swing out, giving full access to the backflow system for testing. This vandal and weather resistant enclosure features a solid sheet construction and stainless steel latching rod with padlock provisions. Includes a wind-blocking rubber skirt and Polar Bearier bag that provides an R30 insulation rating and protects the backflow from frost and moisture.