... certificated aluminum cylinder Type for ME,MD,20CF,40CF,60CF,80CF,125CF,125CF,7oz,9oz,12oz,16oz,20oz,47ci,M6,ML6,MC DOT ... 4255.92/2.72015/13.93360/23.26061 DOT-3AL2015(4.38"--89in3)aluminum alloy4.38/111.2589/1.459.81/ ... 2504/1.822015/13.93360/23.26061 DOT-3AL1800(5.25"--205in3)aluminum alloy5.25/133.35205/3.3614.17/ ... 88in1.68L/103cu.in1.75kg/3.86bs139bar/2015psi232bar/3360psi DOT3AA aluminum cylinder