High Compatibility: 12-pack dog water filters replacement (6.5" x 1.6" x 0.9" L x W x H) for easy installation. Compatible with DF10 (1.3 Gallon/170oz/5L) & DF30 (2 Gallon/270oz/8L) large automatic dog water bowl dispenser and cat water fountain. Note: Not compatible with WF050(TP) & WF100 pet water fountain Multi-Stage Filtration: Combines premium activated carbon and foam sponge for thorough purification. The high-density sponge traps pet hair and food residue; activated carbon removes impurities, heavy metals, and odors—delivering fresh, clean water to keep pets hydrated and healthy Pet-Friendly: Crafted from high-quality, safe, odorless materials. These cat water fountain filters safeguard your pet's health by improving water quality and promoting urinary wellness Easy Maintenance: For optimal performance, replace dog water bowl filter every 2-4 weeks (more often for multi-pet homes) for consistent clean water. Rinse and soak the dog fountain filter replacement in water for 5-10 minutes before first use to activate filtration Value 12-Pack: Includes 12 replacement foam sponge & carbon filters, offering a long-term supply for your pet' s water fountain ONLY Compatible with 170oz/1.3Gallon/5L large DF10/DF30 dog water fountain.