This adaptor, developed by the President of Central Vacuum Stores will enable plumbing pvc pipe to connect to vacuum pvc pipe. Roger Ambrose, designed the adaptors in such a way that the plumbing pipe and vacuum pipe actually fit snuggly into each end of the adaptor creating a smooth interior wall. This means the possibility of interference from the connection is eliminated. The adaptors are connected outside of the pipe, allowing efficient airflow to move dirt and debris through the system and into the dirt container without interference or potential for clogs.