Reduces bad taste odors sediments bacteria chlorine and much more. Includes filter housing one extension hose and one replaceable premium spun polypropylene filter cartridge. Filtration begins with water traveling through a porous shell with openings no greater than 5 microns in diameter. Filtered water then passes through a bed of KDF and GAC (Granulated Activated Carbon) for further filtration and bacteria control. The result is fresh clean great tasting drinking water straight from your tap. For exterior use.