The True TUC-36-HC undercounter refrigerator has four PVC-coated shelves that are adjustable in 1/2-inch increments. Mounted on self-closing hinges, both solid doors have stainless steel exteriors and aluminum interiors, and they stay open past 90 degrees to facilitate stocking and cleaning. Cold air stays inside the unit because it is foamed with polyurethane insulation and has magnetic gaskets around the door frames.