PLS Propane Hose Assembly 750mm. High pressure black hose to (and marked). EN 16436-1 Class 3. 6.3mm i.d., 16.3mm o.d., 30 bar working pressure, 90 bar burst pressure. An advisory label is attached to every hose. Gas Type - Propane. Length 750mm. Inlet - Propane Nut. Outlet - W20.