Atlantic Water Gardens Rock Lid For Atlantic Skimmers, Mountain Color, Medium Molded from natural rock for a natural-looking fiberglass Rock Lid Lightweight and natural-looking, these lids provide an easy and attractive way to disguise your pond equipment RL40 is designed to work with and camouflage Atlantic Pond Skimmers PS4000, PS4500 & PS4600 Available in four regional colors to blend naturally with your landscape 1-year Warranty