• Compatibility: These Cat Fountain Filters are ONLY compatible with Square and Diamond Window 2.2L/73oz Automatic Dog Dispenser Water Bowl. Please check the size and model carefully before purchasing
• Multi-Filtration System: this filter is composed of double-density filter, cation exchange resin, coconut shell activated carbon and cotton mesh. Selected high-quality materials, every drop of water is fresh and living water, so that your pets love to drink water
• Active Filtration: our filter replacement stops hair and debris, remove heavy metal elements, so that your pet's drinking water is more than clean, improve the softening of water quality, and effectively prevent urinary tract diseases in pets
• Friendly Reminder: Please soak the filter in water for 5 minutes and rinse it thoroughly under running water before use. Change the filter every 2-4 weeks and clean the water pump every week to ensure the clean of drinking water
• What You Will Get: These pet water filter replacements contain 5 round replacement filters, 5 round sponge foam filters, 5 square sponge filters