The magnetic drive, self-priming pump is available in either polypropylene/PVDF or high-temperature PVDF materials of construction. It is recommended for corrosive wastes such as acids, alkalies, caustics, bleaches, sea water, solvents and other harsh environments. The product is magnetically driven, so no shaft seal is required. This means no seal leaks and no air leaks. The company claims leakage and troublesome seal replacement are eliminated with the use of this product.