Provided is an adapter configured for use with an aerosol can spray nozzle and an extension tube. The adapter is configured to fit onto an extension tube and to receive a second extension tube to provide a more rigid and fluidly secure connection between the extension tubes. The adapter includes a portion for a first extension tube and a second extension tube portion. Each extension tube portion includes an inner channel extending therethrough, and is sized and configured to allow the extension tube to be insertable therein to create friction-tight engagement between the extension tube and the adapter.