... remove the following hard water contaminants that may be present in your water: lead, cooper, barium, chromium, mercury, sodium, cadmium, ... :1) 3.2Gallon NSF standard water pressure tank2) FDA approved filter housings3) Auto shut-off valve, mini flow restrictors, stainless steel ... ) Operating pressure: 80 - 100psi3) Dimension: 38 x 21 x 46cm (machine) 28 x 28 x 35cm (tank)4) Weight: 9kgs- system ...