This 10 in. granular activated carbon GAC inline water filter is perfect for a final polishing filter that is used as the water is leaving the storage tank on its way up to the faucet applications on reverse osmosis systems or as a stand-alone ice maker filter. The filter has a 1/4 in. FNPT connection. This filter should be changed approximately every six months for best results.10 in. inline filter perfect for final polishing applicationsGranular activated carbon filterCan be used on filtration systems or ice maker filterReduces chlorine taste and odor as we all lime, scale and sediment