Abstract: A dual coupler assembly to be mounted to the back wall of an automatic clothes drying machine for use with the flexible hose fluidingly connecting the air outlet port of the drying machine to outside ambient air. A first coupler includes a cylindrical flue releasably anchored to the drying machine back wall, while a second coupler includes a cylindrical flue anchored to the laundry room floor; in one embodiment, the flues are both horizontal, while in a second embodiment, the flues are vertical. In a third embodiment, one hose coupler is slidable along a ground rail integral to the second hose coupler, the latter being fixed to the ground; an operative position is defined, where the cylindrical flues of the two hose couplers become coaxial to one another. In all cases, by displacing the dryer towards the second coupler, the latter will engage edgewisely the first coupler to become coaxial therewith, wherein fluid-through communication is established.