QC7I Water Filtration System, QC7I Twin 4FC-S, (2) 4FC-S Fibredyne® carbon block cartridges, reduces sediment, chlorine, taste & odor, cyst, turbidity, inhibits scale, 30,000 gallons capacity, 5.0 gpm flow rate, 0.2 micron, inlet water shut-off valve, outlet pressure gauge, flush valve, 3/4" inlet/outlet connections, NSF 42 & 53, (EV920282)