We use 6 metre lengths as conventional with Storz fittings. These fittings link in a short time so we will use multiple lengths of hoses to get to the connection factors. Please speak to our professional crew who will specify the quantities of hoses and fittings through a website study. https://industrial-boiler-hire77532.thenerdsblog.com/44098913/industrial-boilers-uk-can-be-fun-for-anyone