NDS D1200 meter boxes and covers are injection molded of structural foam recycled polyolefin material with a melt index between 10-12. Coloring and UV stabilizers are added, along with processing lubricants when needed. This NDS Meter Box has a 14" x 19" x 12" body that is tapered and has a minimum wall thickness of 0.25". The body has a double wall at the top cover seat area with a minimum thickness of 0.187". The cover seat area has 30 structural support ribs on the underside of the seat, each with a minimum thickness of 3/16". The bottom of the body has a 1" flange. The D1200 cover has a minimum thickness of 0.250".