The Culligan ZeroWater Official Replacement Filter is a white 5-stage water filter specifically designed for removing chlorine taste and odor. Sealed for freshness, this filter is compatible with the ZeroWater model and comes in a pack of 1. Perfect for maintaining clean and great-tasting water in your home, this filter is a reliable choice for those looking to improve the quality of their tap water.

I opened package trying to figure out what it went to.