Latest Filter Unit Rect: Perfectly compatible with Petkite E versweet MAX—offering the best value pet water fountain filter replacement for the newest version of Filter Unit Rect available on the market Multi-Layer Filtration System: Enhanced filtration performance with multiple filter layers. Upgraded high-density microporous filter pad, effectively traps hair and debris.Activated carbon layer to eliminate chlorine and odors.Upgraded bottom grid ensures smoother water flow. Pet fountain filters guarantees that your pets always have the cleanest and freshest water.High-performance filtration also effectively extends your pet water fountain's lifespan Attention: Soak the new cat water fountain filter in clean water for at least 10 minutes before use. Please reset the device after replacing the pet fountain filter replacement. Replace every 2-4 weeks under normal conditions The app will also remind you to replace the filter on time. We recommend that you clean the water fountain and replace water once a week in summer and every 2 weeks in other seasons, this will protect the water pump and filter Package Includes: 12 PCS of Filter Unit Rect filters for cat water fountain, 12 PCS of replacement foam pump filters, and 1 PCS cleaning brush, providing a comprehensive solution for all your needs. Each pet fountain filter is individually packaged, which effectively ensures the sealing of each cat fountain filter Warm Tips: If you notice a small amount of carbon dust inside the water tank, pour out the water and replace it with clean water. The water fountain filters replacement uses food-grade coconut shell activated carbon, which is safe for pets.ANY ISSUE, FEEL FREE TO REACH OUT TO US Enhanced Water Filtration for Pet Health Filter Unit Rect filter for cat water fountain is perfectly Compatible With e versweet MAX cat dog water fountain.This pet fountain filters offers an economical and efficient replacement solution, aligning with the latest advancements in water purification technology for pet fountains. It’s an ideal choice for owners looking for a universal solution that maintains a clean, healthy hydration source for their pets.Cat water fountain filters replacement is dedicated to Pet Safety and Hygiene，Our filters use only the highest quality, food-grade materials, ensuring that your pet's health is never compromised.Equip your pet’s water fountain with our top-tier Filter Unit Rect and observe a noticeable improvement in water quality and pet satisfaction.