【Perfect Match】 It is perfectly compatible with 84oz/2.5L Stainless Steel Pet Fountain. 【Premium 4 Pieces】 This product contains 4 pieces of filters, each piece of filter is individually packaged, which effectively ensures the sealing of each piece of filter. 【Triple Filtration System】 Consisting of a layer of cotton, activated carbon and ion exchange resin. Effectively filter hair, heavy metals, impurities, keep water fresh and improve water quality. 【Protect Pet Health】Helps reduce the risk of urinary tract infection; it is very important for pet health. 【Recommendation】 Please rinse the filter before use. Replace the filter every 2-4 weeks. 💡Note: Due to manual measurement, the size may have an error of 2 cm/1 inch; due to different displays and angles, the color and size may be slightly different, thank you for your understanding! Ugreat welcomes your purchase! We look forward to showing you your shopping experience. Our service: We strive to provide customers with high-quality