CSR Water Filtration System, CSR Quad-7TO, (1) EC210 Prefilter, (4) 7TO granular activated carbon cartridge, reduces chlorine, taste & odor, (1) SR-X Housing, (1) SS-IMF scale reduction cartridge, inlet pressure gauge, outlet pressure gauge, water shut-off valve, flushing valve, 120,000 gallons, 6.0 gpm, 3/4" inlet, 3/4" outlet (EV943713)