Frost-Free: Does not require the user to keep the freezer free of ice build-up
Manual: Requires the user to manually defrost the freezer with a featured drain pump when the ice on the shelves is built-up.
Sabbath Mode: Intended to allow the appliances to be used (subject to various constraints) on the Shabbat and Jewish holidays.
Reversible Door: Refrigerators with field reversible doors allow a right-swing or left-swing door, depending on the design preference in the kitchen.