Protect underground irrigation and sprinkler system components with the 14 X 19 in. Rectangular Standard Series Valve Box. Works with the 14 X 19 in. Standard Series Valve Box Cover, sold separately. The black access box is 12 in. high and engineered with 16 structural support ribs for durability. The box features the patented Universal Locking Mechanism (ULM) that enables the cover to be secured quickly and easily, accommodating various sizes of bolts or screws without the need for a nut. Box also includes a speed nut shelf as an alternative way to secure the cover (bolt and nut not included). Built-in pipe holes allow irrigation piping to pass through the wall of the box so that the box does not rest on the pipe. The irrigation valve box is made of polypropylene (PP) treated with UV inhibitors