Insurice® Water Filtration System, Insurice® Twin-7SI, Twin, (2) 7SI Fibredyne® submicron cartridge (designed to prevent bacteria from entering and/reproducing in a hospital water system), outlet pressure gauge, 50,000 gallons, 7.0 gpm, 0.5 micron, 3/4" inlet, 3/4" outlet, NSF 42 & 53 (EV932472)