Topics:

• What substance filtration does water filter provide?
• Water contaminant reduction when using the water filter
• How often to change water filter
• How many gallons does a water filter go through before needing replacement?
• Instruction sheet part # 7023821

Answer:

Water Filter Life

• Water filters may last longer than a year based on water usage.
• There is no date code on water filters.
• The water filter timer does not reset after a power outage.
• Sub-Zero water filters do not have a shelf life. Store them in a cool, dry environment.
• Storing filters in a damp cold environment could compromise the integrity of the water filter.

Water Filter Performance

• The water filter part number is on the water filter label.
• If the water filter part number is unknown, use the product serial number in the Filter Finder to determine which filter that product uses.
• To reduce the risk associated with the ingestion of contaminants: DO NOT use with water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after the system.

Filtration Data

• All sub-zero water filters reduce the presence of particulates in water as well as chlorine taste and odor. 
• Some filters additionally reduce the presence of contaminants including asbestos, lead, and mercury. Refer to the table below for more specific water filter performance information.

*The water filter for model UC-15I, part # 7012333, is system tested and certified by NSF International against NSF/ANSI Standard 42 for the reduction of Chlorine Taste and Odor and Particulate Class III.

All elements filtered are in the Performance Information. If not listed, it is not filtered.

See also:

• Sub-Zero Water Filter Overview for additional filter information
• Sub-Zero Water Filter Replacement for replacement and purchasing information
• Sub-Zero Frequent Water Filter Replacement

Refer to the product Use and Care Guide for further information.