Wrinkled fruit, wilted lettuce. You've seen your share of past due, even spoiled food in the refrigerator. Well, it doesn't have to be that way - the Sub-Zero 30" Built-in over-and-under refrigerator keeps your food fresher longer with the most advanced food preservation technology available - technology developed through almost 70 years of research. That means crisper greens, juicier peppers, blueberries that burst with flavor - even weeks after you've brought them home from the market. You'll taste the difference.
With Dual refrigeration ®, fresh foods thrive in a humid yet chilly climate, while frozen and convenience foods get the dry, frigid air they need. An air purification system inspired by NASA technology scrubs the air of ethylene gas, bacteria, mold and viruses. A magnetic door seal system locks in cold, while a state-of-the-art microprocessor monitors each section of your Sub-Zero for pinpoint climate control. Storage capacity for the BI-30U is a generous 13.2 cu. ft. refrigerator, 4.2 cu. ft. freezer. Bottom line? More flavorful, delicious food for you, your family, your guests.

Monitor and Control with WiFi

Monitor and control remotely with Wi-Fi connectivity

Preserves Refrigerated and Frozen Foods

Preserves refrigerated foods with cool, moist air and frozen foods with frigid, dry air

Fight spoilage

Fight spoilage and odors with a NASA-inspired air purification system

Locks in Cold Air to Ensure Freshness

Locks in cold air to ensure freshness with magnetic door seals

Keeps Produce Fresher

Keeps produce fresher with high-humidity, sealed crisper and deli drawers

Controls Temperature

Controls temperature within one degree of setpoint

Filters Water and Ice

Filters water and ice, removing contaminants, chlorine taste, and odor

Yields Ice Automatically

Yields ice automatically and

Ensures Excellent Visibility

Ensures excellent visibility with bright halogen lights

Refer to Freshness Cards

Refer to freshness cards for tips on food preservation, use, and care