Abstract: An adapter for a gasoline pump nozzle which is equipped with a gasoline fume return hose that extends over the rigid tubular portion of the nozzle. The hose has an outer open end which is normally aligned with the other open end of the rigid tube. The hose is resiliently compressible so that the outer end of the hose can be moved relative to the tube beyond a protuberance on the tube which is located between the outer end of the tube and the housing of the nozzle. The housing contains a valve in a trigger mechanism and a control mechanism which prevents the valve from being opened by the trigger mechanism when the hose is in its extended state but is effective to enable the valve to be opened by the trigger mechanism when the hose is compressed. The adapter has a handle in a main body portion which contains a slot in an outer opening to the slot.