... PU tube, pneumatic hose air hoseWith Wide Selection ColorsA:Orange B: Navy Blue C:Transparent D:Yellow E:BlackF:Trans G:Red H ... :Trans Green J:Silver K:GoldO.D (mm)I.D ... E3.3/7.2712642001A,B,C,E,F,GH,J,K4.1/9.04151002.05/4.52501.025/ ... 2.26851001.5A,B,C,E,F,GH,J,K3.75/8.2619602.25/4.96301.125/ ... .95/6.521106.51001.75A,B,C,E,J,K5.7/12.5725352/4.41107.51001.25A, ...