Propane Supply Splitter; Allows Connection of Additional Appliances; Female Prest-O-Lite (POL)/ Male ACME Thread x Excess Flow Soft Nose Prest-O-Lite (POL) x 1 Inch-20 Male Throwaway Cylinder Thread x 1/4 Inch Inverted Flare; 4 Ports; With 5 Foot Supply Hose With Excess Flow Soft Nose Prest-O-Lite (POL) x 1/4 Inch Inverted Male Flare,Mounts in-line between supply and regulator on a motorhome to allow hook-up of an auxiliary propane cylinder. Provides excess flow protection in case of broken gas line.