WATERRO Slim 20" Water softening cartridge for 20" Slim housing The WATERRO Slim 20" Water softening cartridge is designed to reduce water hardness using high-quality ion-exchange resin. It effectively reduces calcium and magnesium ions, helps prevent limescale formation, and protects the water supply system and household appliances. The cartridge is compatible with all standard 20" Slim filter housings and is suitable for private homes, apartments, offices, restaurants, cafés and commercial water treatment systems. Key benefits High-quality ion-exchange resin Effectively reduces water hardness Reduces calcium and magnesium ions Prevents limescale deposits Protects boilers, water heaters and household appliances Improves the effectiveness of detergents Long service life Compatible with all standard 20" Slim housings Suitable for domestic and commercial use Easy replacement Applications Suitable for whole-house water filtration systems, offices, restaurants, cafés, boilers, coffee machines, dishwashers, washing machines and other systems where water softening is required. Technical specification Parameter Value Filter type Water softening cartridge Size 20" Slim Filtration material Ion-exchange resin Function Water softening Intended for Cold water Compatibility Standard 20" Slim filter housings Package contents 1 × WATERRO Slim 20" Water softening cartridge Choose WATERRO to effectively reduce water hardness and extend the service life of the entire water system.