Artificial Rock Cover for Sprinkler Valve. A medium sized aritificial rock that will cover aeration pumps, 12" high well and septic pipes and control panels. Lightweight and durable, this rock is made with recyclable materials that will not fade in the sun or crack in cold weather. Made in the USA. Includes ground stakes. Dimensions: 30" L x 23" W x 18" H Weight: 6 lbs.