The piping rail with screw-duct is easier to bolt than the piping-profile rail. (art.No.90115). The silver anodized aluminium rails will be used very often with the caravan or motor-home construction, to seal the junction at the chassis safe from water and to hide it optically. Some rails are provided with piping rails additionally and offer so the possibility to draw in tents or sun sails. Partly the rails can be ordered in brown colour, anodized. Please note, that rails which are offered as per metre, are only available in the length of 2, 3 and 6 metres. The maximum pole measure is 6 metre. Please notice the standard freight charges starting with a length of 2,10 metre.