Replacement Cylinder Hose (pigtail) 500mm. Used to connect a cylinder to a changeover Regulator. It has an F Type Inlet to suit an Irish Propane Cylinder and a W20 outlet to suit all modern Change over Regulators. This Hose is fitted with Excess Flow and Non-Return Valves. Cylinder Hoses must be replaced after five years of service as stated in IS 813. Our cylinder Hoses conform to EN16436.