a mechanical connector typically black, grey, or silver typically round or cylindrical in shape two or more ports for connecting pipes, hoses, or other components a locking mechanism to secure the connection a pressure release mechanism to reduce pressure buildup in the system
coupler which is a mechanical connector coupler which typically black, grey, or silver coupler which typically round or cylindrical in shape coupler which has two or more ports for connecting pipes, hoses, or other components coupler which is a locking mechanism to secure the connection coupler which is a pressure release mechanism to reduce pressure buildup in the system