Sub-Zero · BI-42SD

Water filter for the Sub-Zero BI-42SD

The BI-42SD 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-42SD

9030868 · 4290510

from £29.95

Which water filter does the BI-42SD use?

The Sub-Zero BI-42SD 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-42SD?

Every 12 months or ~600 gallons. Most owners set a reminder twice a year.