【Compatibility】These cat fountain filters are compatible with Veken 95oz/2.8L Cat Water Fountain, 95oz/2.8L Stainless Steel Pet Fountain, 67oz/2L Veken Cat Water Fountain, and 135oz/4L Dog Water Dispenser. Please double-check your fountain model and images before purchasing to ensure a perfect fit. 【Advanced Six-Stage Filtration System】Filters feature a multi-layer filtration system, including a high-density fabric layer, activated carbon, ion exchange resin, and mineral balls. These replacement filters effectively remove hair, heavy metals, and biofilms while deeply purifying the water. Enjoy cleaner, fresher, and better-tasting water for your pets. 【What’s Included】This pack includes 4 replacement filters and 4 pre-filter sponges. Filter Size: 3.9 inches (L) x 3.9 inches (W) x 0.4 inches (Thickness). Pre-Filter Sponge Size: 1.5 inches (L) x 1.1 inches (W) x 1.1 inches (H). 【Promote Your Pet’s Health】Made from eco-friendly and safe materials, these cat fountain replacement filters ensure your pet has access to fresh, clean water. Regular use helps improve your pet’s overall health and well-being, keeping them hydrated and happy. 【Usage Tips】For best results, soak the cat water fountain filters in water for 2 minutes before use. Replace the filter every 3-4 weeks to maintain optimal performance. If you have any questions or concerns, feel free to contact us—we’re here to help and will respond within 24 hours. Includes: 4 pack Veken Cat Water Fountain Replacement filters & 4 pack replacement pump sponges. These cat water fountain filters suit for Veken automatic pet fountain Stainless Steel Cat Water Fountain. Tips: Replace these cat water fountain filters every 3-4 weeks, Rinse Veken water fountain filters with water thoroughly before use.