BRIO STAGE 2 CARBON BLOCK FILTERCarbon block filter: reduces chlorine, odors, cloudiness, VOCs, and other potentially harmful chemicals 5 micron rating: effectively reduces impurities down to 5 microns in diameter Long lasting: purifies water up to 12 months depending on influent water quality and filter usage Easy to replace: remove and replace filters effortlessly due to user friendly quick change design Convenience & value: one Brio filter gives you 40x the capacity of the