Features: PREMIUM QUALITY: Made of premium-quality activated carbon cotton these pet replacement filters can effectively remove bad tastes and odors from water and ensure long-lasting use. WATER: Activated carbon can adsorb impurities and odor keep the water fresh and thus keeping your lovely pets healthy. PERFECT MATCH: This product is compatible with DrinkWell branded pet water dispensing filter. GOOD PERFORMANCE: This pet fountain filter is greatly helpful for capturing hair and other things like that and removing bad smells and odor from water to effectively keep the water; and fresh in the pet drinking bowl. EASY TO & USE: This product is easy to be placed in your pet s drinking bowl and can be cleaned directly through the water. It is worth noting that you should change the filter after using about 2-4 weeks in order to maintain the water fresh. Specification: Product Name: Pet Replacement Filters Main Material: Activated Carbon Cotton Size: 110*60*5mm Weight: 10g Package Information: Package Size: 13*11*3cm Package Weight: 120g Package List: 12*Pet Replacement Filters