HomeProduct Care instructionsFilter should be replaced every two-to-four weeks Filter should be replaced every two-to-four weeks Filter Showing the single result Default sorting Sort by popularity Sort by latest Sort by price: low to high Sort by price: high to low Sort by Sales Rank Cat Care Kit PetSafe Drinkwell Replacement Filter for Original | Platinum | Mini | Big Dog Pet Fountains, Charcoal Carbon Filter for… £7.29 BUY