Sub-Zero · BI-48SD
Water filter for the Sub-Zero BI-48SD
The BI-48SD takes the 4204490 water filter. Here’s the exact match, its cross-reference codes, and the cheapest certified compatible options.
Compatible filters for the BI-48SD
FAQ
Which water filter does the BI-48SD use?
The Sub-Zero BI-48SD uses the 4204490 filter, also sold as 9030868, 4290510. Certified compatible versions fit identically and cost less.
How often should I change the filter in my BI-48SD?
Every 12 months or ~600 gallons. Most owners set a reminder twice a year.