2 in 1 10'' 5M PP + GAC Water Filter 1.Filter cartridge is good at removing objectionable tastes, Chlorine, unpleasant odor, spore, lead and microorganisms. 2.Using granular activated carbon as material, the filter cartridge is good at removing objectionable tastes, Chlorine, unpleasant odor, spore, lead and microorganisms. The activated carbon the filter cartridge used has been processed by acid-washing and wind-selection and the end caps are fixed with special PP layer instead of general non-woven cloth. So no carbon fines releasing from the filter cartridge, at the same time, it keeps a high flow. 2 in 1 10'' 5M PP + GAC Water Filter Model No.:2 in 1 10'' 5M PP+GAC Type:2 in 1 10'' 5M PP+GAC Maximum Flow:1.5GPM Maximum Pressure:125PSI Maximum Temperature:50 degree C Replaced period:Every3months,depends on water qulailty