In a dual installation with Sub-Zero BI-36F all freezer, the Sub-Zero BI-36RGF all refrigerator with glass door offers maximum refrigeration capacity with a contemporary look. The new air purification system continuously scrubs odors, bacteria, ethylene gas and contaminants to keep food fresh. Framed, overlay and stainless steel models are available. A new flush inset design installation option allows the unit to sit flush with surrounding cabinetry.