MB-1 Polyethylene Water Meter Box Approximate Measurements 17 1/4" x 12 3/4" x 14 1/2" Proven Service The especially formulated material used in the MB-1 meter boxes have been tested and proven in service by water and gas industries. This revolutionary meter box is an exceptionally desirable replacement for cast iron, concrete, or aluminum. The superiority of the MB-1 meter box offers industry a tremendous economy through longer life. Proven Processing Our structural foam molding process allows our parts to have a cellular foamed core surrounded by integral skins. The process gives our products high strength-to-weight ratio making it have greater rigidity than solid parts of the same material and of equal weight. Item # 1