Rather than removing beneficial minerals like old-fashioned salt softeners, the NuvoH2O system uses a citrus-based formula, called CitraCharge, to bind hard minerals. Once bound to CitraCharge the minerals cannot form scale. It can even extend the life of costly water heaters. The NuvoH2O Manor plus Taste system is designed for homes greater than 1,500 sq. ft. This system is built to not only soften your water but also filter the water to provide better tasting and smelling water for your entire home. This bundle includes Manor plus Taste Whole House Salt-Free Water Softener, Conditioner and Filtration System and a replacement cartridge. Cartridge replacement is recommended every 6-months.