Unit shall be of welded stainless steel construction to dispense oval dishes. Dispensers shall hang from surface opening by a 14-gauge flange rim and feature four each 18-gauge vertical corner supports welded to 18-gauge bottom plate. Self-leveling dish carriage shall be of welded stainless steel construction and shall travel vertically in dispenser tube with nylon roller guides for smooth operation. Carriage shall have 20-gauge removable dish platform. Unit shall feature flange mounted extension springs on two sides, which are detachable from the dish carriage to provide adjustment without tools for different weight dishes. Unit shall have a vertical stacking capacity of 25″ (635 mm). Shielded and heated models shall have a 24-gauge skin enclosure Unit shall be NSF listed.