Camco Evo Premium Water FilterReduces bad taste, odors, sediments, bacteria, chlorine and much more. Includes filter housing, one 12 inch 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 KDFR 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.