Sub Zero BI-30U Over-and-Under Refrigerator & Freezer Price and Review

The Sub Zero BI-30U is a 30 inch built-in combination of refrigerator and freezer with a retail price of $7,840 – $9,250. The comparison model is the BI-30UG.

This has an overall height of 84″ and overall depth of 24″. The specification door swing of this freezer is LH or RH and has a door clearance of standard 31 1/4″ and flush inset of 31 1/4″.

It’s a very wide unit and can be used to store a lot of food, drinks and other items. The stainless steel finish really sets this unit apart and makes it one of a kind.


Product specifications and measurements:

  • Opening Width: 29 1/2″
  • Flush inset width: 32″
  • Opening Height: 83 3/4″
  • Flush Inset Height: 84”
  • Opening Depth: 24” 
  • Flush Inset Depth: 26 3/16″


  • Dual refrigeration system makes sure the best meals and energy efficiency.
  • Digital microprocessor constantly oversees whole unit to make certain proper meals storage space atmosphere.
  • Air purification system reduces odors, micro-organisms, viruses and ethylene gas.
  • Microbiological water filtering system filters germs, viruses and sediment, however not fluoride.
  • Illuminated touch control board.
  • Brilliant indoor illumination throughout, consisting of storage space cabinet area.
  • Changeable spill-proof glass racks, door racks and dairy products area.
  • Soft-close crisper and delicatessens cabinets form a reduced temperature area ideal for production and meats.
  • Easy-access flip-up grille.
  • Informational freshness cards.
  • Full-extension, roll-out fridge cabinet.
  • Maximum ice feature increases production for a 24-hour duration.


  • Grilles for 83″ or 88″ finished height (84″ is standard).
  • Framed front panels in white and stainless steel.
  • Flush inset and dual flush inset panels in stainless steel with tubular or pro handles.
  • Dual installation kits with and without dual wide grille, 84″ finished height.
  • Side panel in white and stainless steel.
  • Stainless steel kickplate.
  • Framed grille insert and full-length handles.
  • Stainless steel tubular and pro handles.
  • Dozen egg container.
  • Replacement air purification cartridge and water filter.
  • 90° door stop.

Interior Features:


  • 12.7 cu ft Capacity
  • Air Purification System
  • 3 Adjustable Glass Shelves
  • 1 Stationary Glass Shelf
  • 1 High-Humidity Drawer with Divider 
  • 1 Storage Drawer with Divider
  • 2 Adjustable Door Shelves
  • 1 Stationary Door Shelf
  • Adjustable Dairy Compartment


  • 4.1 cu ft Capacity 
  • Water Filtration System
  • Full-Extension Roll-Out Freezer Drawer
  • Two-Tier Wire Storage Baskets
  • Automatic Ice Maker


Over-and-under model BI-30U offers easy access refrigerated storage with a roll-out freezer drawer. Sub-Zero dual refrigeration along with new air purification and water filtration systems guard the freshness of your food and water like nothing in the market. Overlay, flush inset and stainless steel design options are available. The flush inset installation allows the unit to sit flush with surrounding cabinetry. This also have a classic stainless steel finish with option for tubular and pro handles.

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