North America Household Water Treatment System Market: By Product Type (Point-of-entry (POE) Systems (Water Softener (Medium and High), Whole House R/O, Whole House C/B), Point-of-use (POU) Systems (Under-Sink, Counter-Top, Faucet-Mount, Pitcher, Others (Portable Filtration Systems, Inline Refrigerator Filters Etc.)), Consumables (Water Softener Salt, PoU Replacement Filters, Others (Descaling Solutions, Desinfektionsmittel, Dichtung und Siegel-Kits usw.)); Box);