Description: Adopted high-density and high-content activated carbon design this cat water fountain filter has ability to filter fur and residue absorb odors soften water effectively maintain water quality and increase oxygen content. These pet water fountain filters can be cleaned and reused. It is strongly recommended replacing the filter every 2 -4 weeks to ensure a great filtering effect. Simply soak these filters in water and rinse it thoroughly under running water before use. It is made of high-quality sponge and activated carbon material. The length of this product is 12cm width is 5cm and height is 2cm. This product is perfectly suitable for home household dorm puppy shop etc. Item Name: Cat Fountain Filter Material: Sponge Activated Carbon Features: Eco-friendly Odor-absorbing Convenient Size Details: Size: 12cm x 5cm x 2cm/4.72 x 1.97 x 0.79 (Approx.) Notes: Due to the light and screen setting difference the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 5 x Cat Fountain Filters