You cant tell me there is anything wrong with using a Fibre wrapped bottle which has both DOT testing requirements and HSE testing requirements printed on it,
If your in the uk you follow the HSE specs and if not you follow the DOT spec, I should imagine its to cut costs imagine if the manufacture had to make to sets of tanks and the only diffrence being the wrighting on them it would costs a packed to alter everything its easier / cheaper to make one bottle and have both specs printed on them.
If your in the uk you follow the HSE specs and if not you follow the DOT spec, I should imagine its to cut costs imagine if the manufacture had to make to sets of tanks and the only diffrence being the wrighting on them it would costs a packed to alter everything its easier / cheaper to make one bottle and have both specs printed on them.