Filtered water volume: 3000L High removal power: JIS standard 12 items + 8 items cleared (industry top class) Approximate replacement time of filter media: 10 months (when using 10L per day) Cost: Approximately 3 yen per 1L Filter media: micro-activated carbon, non-woven fabric, titanium silicate Backflow cleaning: Backflow cleaning of the filter where dirt accumulates and long-lasting effect Other (function) :P W water purification, TW raw water (shower) BW backflow cleaning / Please note that we do not accept returns once used. Please check the type of faucet carefully before purchasing. If it doesn't fit your faucet, we'll send you additional parts free of charge. Please contact us by e-mail below with the necessary parts and address. info@ibelieve.tokyo * This product is an overseas specification. The notation may be in English.