Abstract: A spray head for use with a liquid to be sprayed and a propellant. The spray head includes a first cap which has segmented, arcuate, resilient, annular gripping sections having outwardly extending projections which grip an annular lip on the container of propellant. A cover on the first cap is shaped and adapted to coact with a dome on the first container so that a section of the spray head is placed under compression or tension by opposing forces when the spray head is attempted to be removed from the container of the propellant. A second cap has a body with threads to connect it to a second container which would normally contain a liquid. A bridge included in the second cap is operatively attached to the first cap. The bridge includes a channel through it and has ne end connecting an opening in the first cap. An actuator on the bridge controls a spring-biased valve n the propellant container. The other end of the channel and bridge is in close proximity to a bore in the second cap.