The SUB-ZERO Water Filter 7023811 by ZeroWater is a new white plastic water filter specifically designed for the SUB-ZERO BI-42UFD and BI-48UFD models. It is a single pack filter that effectively removes chlorine taste and odor contaminants, providing clean and great-tasting water for your kitchen. This high-quality filter ensures that your water is safe and healthy for consumption, making it an essential appliance for any home looking to improve the taste of their tap water. ***New in Box***