We use 6 metre lengths as standard with Storz fittings. These fittings join very quickly so we can use various lengths of hoses to get to the relationship factors. Please talk to our expert team who will specify the quantities of hoses and fittings all through a internet site survey. https://collinvhpxf.fireblogz.com/69393002/the-definitive-guide-to-industrial-boilers-uk