Boss manufactures lightweight T6 heat treated aluminium air tanks, with a range of tank sizes, port configurations and port sizes. Our tanks are rust free, providing clean air for valves. All 9L (3 gallon) and 15L (5 gallon) tanks can be mounted in 3 angles - on end, upright, or upside down and still keep drain port at bottom with out unique design. Mounting legs included. Shot blasted anodized or chrome finish. Recommended working pressure 0 - 170 psi. Maximum pressure 400psi. Sizes range from 2 litres through to 15 litres with extruded centre section and stamped ends.