(Swivel 1"-20 Male Throwaway Cylinder Thread x Soft Nose Excess Flow P.O.L. w/Handwheel). This hose is designed to be used with low pressure appliances that are going to be connected to high pressure systems or bulk propane tanks. Unique green hose material does not leach oil. Eliminates the need for a fuel filter. Connects appliances that are designed to be connected to 1 lb. bottles, to 5-20 lb. tanks. Hand tighten swivels on both ends.