The Eccotemp EZ-FLUSH System Descaler Kit is the answer to any water scale, lime, or rust deposit build-up in virtually any piece of water-based equipment. The EZ-FLUSH system has been designed to work seamlessly with Tankless Water Heaters and is compact for easy use and storage. It includes our Eccotemp Descaler that is specifically made to dissolve the toughest build-up and is a non-toxic concentrate which is certified to NSF/ANSI 60 for use as a cleaner in potable water systems. Keep your Tankless Water Heater running at full efficiency and ensure it provides hot water for years to come with the Eccotemp EZ-FLUSH System Descaler Kit.