Artis engineered patented four chamber design provides the most efficient flow chambers of any pump available on the market, while maintaining stable water flow at low amperage. The Artis self-priming feature allows suction up to 6 feet from pump. Safety features include thermal and over pressure protection, as well as the pumps ability to run dry without any damage. Same foot print for easy direct replacement of most RV water pumps. Built-in check valve prevents any back flow. Potable water NSF-61/Complies with UL & C-UL.