Universal CompatibilityPerfect replacement filter for most 67oz/2L stainless steel cat water fountains. Check product images to confirm compatibility with your pet fountain. Advanced Filtration System - Dual-layer filtration: Activated carbon removes odors while dense sponge traps hair, dust and food particles - Keeps water fresh and clean for healthier pet hydration Safe & Durable Materials - BPA-free construction with food-grade components - Promotes fresh drinking water for cats and small pets Easy Maintenance - Rinse filter before first use - Clean with weekly water changes - Replace every 2-4 weeks for optimal performance Why Choose Us - Premium quality at affordable price - Perfect fit for adjustable flow fountains - Enhances your pet's drinking experience