The Catit 2.0 Senses Flower Fountain Water Softening Filter is a replacement filter pack for the Catit Flower Fountain, sold in sets of two. It handles the ongoing maintenance that keeps the fountain working as intended rather than becoming a source of stale or mineral-heavy water.

Each filter uses a two-stage system: ion exchange resin that binds calcium and magnesium to soften hard water, and activated carbon that absorbs chlorine odours, sediment, hair, and debris. The result is cleaner, softer water that's more palatable to cats — relevant for owners whose cats are reluctant drinkers or who live in areas with hard tap water. Filters are recommended for monthly replacement.

Running a fountain without replacing filters regularly undermines the point of having one. This two-pack covers two months of maintenance and keeps the water quality consistent enough that cats who were drawn to the fountain in the first place continue to drink from it.