Valve Boxes: Shall be furnished for all valves and shall be of the Buffalo style and must be made in North America. Boxes shall be standard cast iron, asphalt coated, adjustable, sliding type, together with cast iron covers with the word “WATER” plainly cast in relief on the top surface. The bell end of the lower section shall have a minimum inside diameter of 8" to fit over the stuffing box of the valves. The smallest inside diameter of the shaft will not be less that 5 1/4" with a 6 foot bury. Curb Boxes: For 3/4" and 1" service lines shall be Buffalo style, made in two sections, sliding type arch pattern base. Curb boxes shaft shall have a minimum inside diameter of 2 1/2" with a 6 foot bury. The cast iron curb box cover shall have "WATER" plainly cast on the cover.