Abstract: A coupling mechanism in a fluid delivery system is provided. In one example, an airless fluid delivery system is provided and includes a housing including a pumping unit. The system also includes a first conduit providing a first fluid path for supplying fluid from a fluid source to the pumping unit and a second conduit providing a second fluid path for fluid between the fluid source and the pumping unit. The system also includes a coupling mechanism configured to removably couple the first and second conduits to the housing.