3M Aqua-Pure Aqua-Pure AP430SS, Hot Water Heater Scale Inhibitor System (AP431 Cartridge Included)

Note: One AP431 Cartridge is included Replacement Filter: AP431 Hot Water System Filter (10 GPM) When scale prevention is the primary goal, especially with instantaneous or tank-less water heaters, Aqua-Pure offers a choice of economical solutions The AP430SS products are ideally suited for installation on the supply side of a water heater and help to maintain maximum system efficiency and help extend their life. Features: Contains Silliphos, a 100% food grade scale inhibitor approved by the USDA Helps protect piping system from corrosion Easy to install and change out cartridge Inhibits scale build-up in hot water heaters (both with and without tanks) and water using appliances Maintains efficiency and extends the life of hot water systems Stainless steel head Replace filter every 4 to 6 months 1 year limited warranty