Curb box shall be constructed of five feet of 1½-inch galvanized pipe threaded with coupling to be screwed into the top of curb stop. Three feet of 2-inch galvanized pipe shall be placed over the 1½-inch section of pipe and is to be level with the ground surface of the property when the job is completed. The curb box lid shall be threaded into the 1½-inch pipe and shall be A. Y. McDonald Model #5623L, 1½-inch Brass Pentagon Plug (#4511-204). The word “WATER” in raised letters shall be on the top. When using the Mueller H-15201 curb stop, a 1½" x 2" reducer coupling is needed, which screws on to the curb stop.