Abstract: This disclosure provides a refrigerated display case for maintaining food freshness and improving food safety while reducing the possibility of spoilage and reducing the labor otherwise required for cleaning a standard case where contaminates commonly accumulate. This structure improves humidity levels by avoiding condensation on lower coils while reducing the complexity of adequately cleaning the case and maintaining food safety. Elimination of this hidden cavity reduces cleaning time. The disclosure employs a removable floor assembly or chilled floor component which may be employed in gravity cases or forced air cases. The removable assembly comprises encased cooling coils which may be foamed in or otherwise secured therein. The floor assembly is removable, making the floor and cooling system an integrated and replaceable component. The novel case further incorporates accessible expansion valves which may be adjusted without removing the food product from the case.