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Sub-Zero Classic Series (BI) Water Filtration System


  • Classic (BI) water filtration system
  • Water filtration system explanation
  • How does the water filtration system work?


The water filtration system of Sub-Zero Classic (BI) models supplies filtered water to the ice maker and water dispenser (dispenser models) to produce great-tasting water and ice.

IMPORTANT NOTE: When using the water filtration system for the first time and after filter replacement, it is necessary to clear any air from the system and allow the filter to help in cleaning the water lines. For non-dispenser models, discard the first two full containers of ice. For dispenser models, dispense several glasses of water for a period of two minutes.
If the water filtration system will not be used, it can be placed in water filter bypass mode by removing the filter.
The filter is rated for 750 gallons (2839 L) or one year, whichever comes first. The

Replacement Sub-Zero water filters can be ordered online at the Sub-Zero Accessory Store. For questions, contact Sub-Zero Customer Care at 800-222-7820.

For information on the material in the filter, along with the contaminates that are filtered, refer to Water Filter Performance Information.

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


Need further assistance? Contact Customer Care at 800.222.7820 or provide your information below and request a Customer Care representative contact you.

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