QC7I Water Filtration System, QC7I Twin - MC², Twin, (2) MC² Precoat primary filtration cartridge, reduces chlorine, taste & odor, outlet pressure gauge, water shut-off valve, flushing valve, 18,000 gallons, 3.34 gpm, 0.2 micron, 3/4" inlet, 3/4" outlet, NSF 42 & 53 (EV927502)