Orbit"s Sandstone Rock Valve Box Cover is an attractive alternative to the standard sprinkler system valve box cover. Made from durable water and element-resistant materials, this irrigation system rock valve cover was designed to protect your irrigation system valves from direct exposure to weather and sunlight.Features and BenefitsThe sandstone rock styled cover is a great choice for your lawn"s sprinkler irrigation system or garden sprinkler system valve boxesLarge enough to fit over most 20-inch rectangular irrigation system valve boxes; can fit up to 4 anti-siphon valves securely Dimensions: 20" from inside top to the base; 23" length at the base; 19" wide at the base