KDF Water Filter 1.6 filters 2.For kitchen use 3.Easy install, ... waterThe 4th: far infrared mineralized ball, which has anti-bacteria function; improve the water dissolvedoxygen, release some helpful microelement; improve the ... metal element.The 6 th: UF membrane, 0.01 micron filter fineness, remove the suspended substance, colloid, bacteria, virus, macromolecular organic ...