The Astral skimmer lid type 3 is designed to close your skimmer opening safely and neatly. Due to exposure to UV radiation, rain, frost, and pool chemicals, a skimmer lid can weather or crack over time. Replacement is then essential to prevent dirt or unwanted objects from entering the skimmer. This lid is suitable for SNTE skimmers and fits perfectly thanks to its precise dimensions. Always check the size for a proper fit.