aquafresh is a well known brand , this purifier has all te latest features like RO+UV+UF+TDS+MINERAL PRE FILTER,, to remove all kind of impurities like sand , dust, mud upto size 5 micron. SEDIMENT FILTER…to remove all kind of sedimentation from water upto size 0.5 micron. CARBON FILTER…to remove all kind of chemicals , smell & odour . MEMBRANE ,,, to remove all kind of hard metals from water & reduce tds lavel. UV LAMP.. to remove all kind of becteria virus from water. UF FILTER.. TO REMOVE ALL KIND OF IMPURITIES. MINERAL CARTRIDGE… to maintain minerals quantity in water & makes water healthy . it has 15 ltr storage tank with food grade plastic tank wth water lavel indicator. fully automatic .