Features: brand new and high quality Compact size, which will not occupy much storage space, widely suitable for home and office, for cat and dog. Strong cotton, can effectively filter out hair, sediment and sediment; activated carbon can remove unpleasant odor in water and improve the taste of water; resin can capture hair and coarse dirt in water, soften water and reduce the possibility of stones. The filter is made of filter cotton + resin + activated carbon, triple filtration ensures healthy moistures for your pet. To keep the water clean, the filter must be replaced in for time. We recommend replacing within 2 to 4 weeks. Wide compatibility, the filter is for branded water dispensers, and also for other water dispensers of the same size. Please check the size of the water dispenser card slot before purchasing. Specifications: Material:Non-woven Fabric Size:Approx. 12.5x12.5 for cm/4.92x4.92 inches Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 2x Activated Carbon Filters