Abstract: An open-top, thermally insulated "secondary" case for the storage and display of perishable food stuffs which must be maintained at a refrigerated temperature. The case is "parasitic" in the sense that it itself includes no independent refrigeration apparatus but is, rather, supported on a wall of a primary or "host" refrigerated storage and display case so that, with the aid of a cooperating fixed baffle, air deflection panel, or vane, cooled air from the primary storage case is directed into the secondary case, thereby to cool the interior of the secondary case and the articles retained therein.