Vertical or Horizontal unit Maximum working pressure 12 Bar (175 PSI) Carbon Steel or Stainless Steel Construction Tank made to ASME Code Section VIII Div I ASME U Stamp available as an option Capacity up to 15,000 liters (4000 gal.) Compatible with all foam concentrates Nylon reinforced Buna-n-rubber bladder Proportioner pre-piped on to the tank Bladder Tank filling kit provided if required UL Listed