Smooth control with separate tanks for cold and hot water Separate tanks for cold and hot water allow easier control of water volume and temperature for more efficient use of water and energy. Composite filter for smooth skin By removing chlorine and floating substances remaining in tap water, a composite filter minimizes irritation to the skin and keeps your skin smoother. Easy to use valve switch A simple switch allows user to choose from tap water or softened water. Model BB03 Resin Type ¡°Na+¡± type positive ion exchange resin Resin Capacity 1.84 gal [Cold (3.5 l) / Hot (3.5 l) ] Soft Water Treatment Capacity 8,818 lb (4 tons) (based on tap water hardness of 100 ppm) Temperature 35.6 ~ 176 ¡ÆF (2 ~ 80 ¡ÆC) Pressure 0.1~1.0 Mpa Regenerate Replacement Cycle Once / 1 months (may vary depending on consumption of soft water) Compound Filter Replacement Cycle Once / 4 months Installation Method Wall-mounting / Free-standing Dimensions (W X D X H) 11.7 X 20.5 X 6.6 inch 298 X 520 X 174 mm Net Weight 28.7 lb (13 Kg) * Specifications are subject to change without prior notice.