We use 6 metre lengths as conventional with Storz fittings. These fittings hook up in a short time so we will use multiple lengths of hoses to get to the connection factors. Please talk to our specialist staff who can specify the quantities of hoses and fittings during a web-site https://industrial-boilers-uk42197.blogoxo.com/38418699/helping-the-others-realize-the-advantages-of-industrial-boilers-uk