A drain assembly for a refrigeration appliance in communication with an appliance drain. The drain collects condensate from an evaporator behind the rear wall of the cabinet and transfers the condensate to the drain assembly in the machine compartment of the refrigeration appliance. The drain assembly then transfers the condensate to an extension tube easily accessible to an operator. The drain assembly includes an inlet, a main body, and an outlet. The inlet is secured to the appliance drain and the outlet is secured to the extension tube. The main body also comprises a downward slope in between the inlet and the outlet. In one example, a vacuum relief system can equalize a pressure differential between an interior of the main body and an exterior environment.