Sub-Zero 7023812 Replacement Refrigerator Water Filter.

A genuine OE part from the manufacturer, the Sub-Zero 7023812 refrigerator water filter is designed by the manufacturer for use in harsh or low-quality water conditions. For up to 12 months after installation, this carbon block filter will help to ensure you serve only the cleanest-tasting water and ice possible, regardless of the water conditions in your community. Fits models prior to serial #4116297 only