Orbit 53016 Granite Rock Sprinkler System Valve Cover Box Install valves according to local plumbing codes Do not sit or lean on cover Do not allow children to play on cover Attractive granite color especially attractive for Southwestern landscapes. Alternative to standard valve boxes Protects valves from damage due to sunlight or weather Made with weather-resistant material Fits up to 4 anti-siphon valves Fits easily over most 20 In. rectangular boxes