Refill Cartridge for Atlas Filtri ScaleArmor ROCKDESCRIPTION:The Rock Refill Cartridge from Atlas Filtri is a high performance anti-scale system that is designed for large domestic and commercial applications, helping to treat hardwater for flow rates up to 2270 L/h or 10 Gallons Per Minute. The Rock filter works by using a replaceable media solution that treats the water, helping to prevent the formation of limescale in pipes, appliances and other areas. Please note that this doesnt soften the water, but actively inhibits the growth of calcium and magnesium carbonate crystals that would form limescale within your water systems.CERTIFIED:To maintain certified effectiveness, use only the original ScaleArmorjar refill: 1 refill = 1 full cartridge. *ScaleArmorROCK: certified scale prevention up to 86% in comparison with an untreated system.ADVANTAGES: -86% Scale Reduction* Continuous Effectiveness Up To 2 YearsWorks At Higher TemperaturesMax 45°c - 113°f | Min 4°c - 39.2°fECO-F