BWS Reverse Osmosis System, BWS1500/50, (3) CTO-Q activated-carbon cartridge prefilter, (1) AMS-4021XLE membrane cartridge, (1) M-Q15 proprietary mineral postfilter, (1) 50 gallon atmospheric storage tank, digital TDS meter, full system bypass valve, 1500 gpd, 1/2" inlet, 1" outlet (164-15545)