Nikken Waterfall 1 Filter Cartridge 13845 - Replacement for Gravity Water Filter Purifier System 1384 | PiMag Water System Components | Helps Body Recover from Acidity | Up to 45 liters of Water a Day NSF/ANSI Standard 42: A regulated acid/alkaline (pH) balance is essential for maintaining health, but a typical modern diet and lifestyle can lead to excess acidity. For reduction of aesthetic chlorine, aesthetic chloramine, taste and odor. RATED CAPACITY: Rated flow service is at least 45 liters per day. Do not use with water that is micro biologically unsafe or of unknown quality without adequate disinfection before or after use in this product. REPLACEMENT: It must be replaced if it has reach 900 liters or three months of use, whichever come first. This may need to be performed less or more frequently, depending on operating conditions. IMPORTANT: Before use, filter cartridge must be soaked in cold water for at least 8 hours. Please see the instruction manual for the procedure. INCLUDES: (1) PiMag Waterfall Replacement Filter #13845