The Catit Senses 2.0 Flower Fountain Water Softening Filter is a replacement 2-pack designed for the Catit Flower Fountain and other Senses 2.0 drinking fountains. It fits cats of any age or size and is a maintenance item — rotate them in to keep the fountain running cleanly rather than as a one-time purchase.

Each filter combines an ion-exchange resin that reduces magnesium and calcium in tap water with an activated carbon layer that helps trap odours and debris before the water reaches your cat. Softer water is easier on cats prone to urinary issues, and cleaner water encourages fussy drinkers to keep coming back to the fountain instead of the nearest houseplant.

Owners stick with these because they're the exact spec Catit's fountain was built around — third-party filters often sit loosely or bypass the flow. Swapping every few weeks keeps the pump quiet and the water tasting the way your cat expects.