FX Water Filtration System, FX-22, Single,(1) S5-20 prefilter, (1) CTO-20 activated-carbon cartridge, reduces chlorine & sediment, outlet pressure gauge, mounting bracket, 30,000 gallons, 3.0 gpm, 0.5 micron, 1/2" inlet, 1/2" outlet, NSF 42 (160-50025)