Features: Designed for simplicity, this sump pump lid makes installation and replacement a breeze, fitting most pipe sizes with ease. Its user-friendly design ensures you spend less time on setup and more time enjoying a protected, efficient sump system. Built to endure most weather conditions and pressure variations, this radon sump pump cover is both safe and reliable. It securely covers the sump, preventing debris and sewage intrusion, making it an essential addition to the sump pump setup. Specifications: Material: plastic Color: black Size: about 20.5 inches/ 52 cm in diameter, 0.2 inch/ 5 mm in thickness Hole size: about 0.39 inch/ 1 cm Package includes: 1 x Sump pump cover Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays.