Item Inner tube O.D. Outer tube O.D. Meas. G.W. 20' Full length EP-206A41 Flat 25mm 32mm 139*19.5*12 12 10872 2.4m EP-206AB41 Flat 25mm 32mm 139*19.5*12 12 10872 2.4m EP-206A42 Hex 22mm 32mm 139*19.5*12 12 10872 2.4m EP-206AB42 Hex 22mm 32mm 139*19.5*12 12 10872 2.4m