The Original Radon/Sump Dome Go to amazon.com Related posts The 6 best sump pump cover for 2022 FeatureCan help reduce harmful radon gas in your home.Reduces unwanted odor in your basement.Made In The USA DescriptionThe Original Radon/Sump Dome is ideal for covering the sump pit in your basement, while reducing odor and helping to protect against radon gas.