CSR Water Filtration System, CSR Plus-XC2, Quad, (1) EC210 Prefilter, (4) XC Precoat primary filtration cartridge, reduces chlorine, taste & odor, (1) remote mount SR-X scale reduction feeders, (1) 9 gallon surge tank, inlet pressure gauge, outlet pressure gauge, flushing valve, 48,000 gallons, 6.70 gpm, 0.5 micron, 3/4" inlet, 3/4" outlet, low pressure alarm, NSF 42 & 53 (EV934721)