Abstract: A refrigerator includes a compressor and an evaporator interconnected by a refrigerant conducting tube. The tube passes through an opening in an internal wall of the refrigerator. The opening is formed by cutting a U-shaped slit into the wall, thereby forming an elastic plate, and then forming a groove having an open access end coinciding with a section of the slit. By elastically flexing the plate, the access end of the groove becomes exposed to enable the tube to be inserted into the groove. When the plate is released, it snaps back to a position wherein an edge thereof extends across the access end and keeps the tube pressed within the groove.