Mounts in-line between supply and regulator on a motorhome to allow hook up of an auxiliary propane cylinder and the connection of an additional propane appliance such as a tabletop grill, camp stove or lantern. Includes propane tee (Female P.O.L. x excess flow soft nose P.O.L. x 1"-20 male throwaway cylinder thread x 1/4" inverted flare), 12' extension hose with male x female swivel 1"-20 female throwaway cylinder threads and 5' supply hose with excess flow soft nose P.O.L. x 1/4" inverted male flare connections.