?Filter Cartridges?This Is The Filter Cartridge For The Handheld Shower Head. | | ?Filter Cartridges?Please Change The Filter Cartridge Under The Following Situation *The Output Water Has Peculiar Smell Or Turbidity *The Flow Rate Is Too Low. | | ?Filter Cartridges?Please Change The Filter Cartridge Under The Following Situations: The Filter Has Been Used For More Than A Period Of Time *About 3 Months (One Person Use) *About 2 Months (Two Persons Use) *About 1 Month (Three Persons Use). | | ?Notice?Due To The Difference Of Local Water Quality, The Actual Service Life May Be Different From The Recommended Lifespan. | | ?Long Lasting Filter Life?Each Of The Shower Chlorine Filter Cartridge Offers You 2640 Gallons Of Cleaner Water, Or 6 Months For 1 Person, 3 Months For 2 Persons, 2 Months For 3 Persons ( It Depends On Local Water Quality.) | | ?Save Money?Under Normal Circumstances, 2 Filter Cartridges Can Be Used For One Year. Spend Usd0.05 Per Day To Enjoy A Healthy Filte.