7-Layer Advanced Filtration for Cleaner Water: Features a multi-stage design with food-grade PP cotton, activated carbon, and ion exchange resin that removes hair, debris, heavy metals, and odors—keeping your pet’s water pure and fresh. Pet-Safe, BPA-Free Materials: Crafted from food-grade, BPA-free materials to ensure safe daily hydration for dogs and cats, including those with sensitive stomachs or allergies. Trustworthy for long-term health support. Improves Taste & Protects Health: Effectively softens water and enhances taste while helping to prevent urinary tract issues and kidney problems in pets by filtering out calcium, magnesium, and other minerals. Long-Lasting & Easy to Replace: Each filter lasts 1-3 weeks depending on usage. Comes in a convenient 4-pack for up to 3 months of clean water. Change regularly for best performance—easy, tool-free installation. (4 Pack) Replacement Filters for Pet Water Fountain, High-efficiency & Safer & Cleaner Water Dog Fountain Filters for Large Dog Water Fountain/Dog Water Bowl Dispenser 7-Layer Advanced Filtration for Cleaner Water: Features a multi-stage design with food-grade PP cotton, activated carbon, and ion exchange resin that removes hair, debris, heavy metals, and odors—keeping your pet’s water pure and fresh. Pet-Safe, BPA-Free Materials: Crafted from food-grade, BPA-free materials to ensure safe daily hydration for dogs and cats, including those with sensitive stomachs or allergies. Trustworthy for long-term health support. Improves Taste & Protects Health: Effectively softens water and enhances taste while helping to prevent urinary tract issues and kidney problems in pets by filtering out calcium, magnesium, and other minerals. Long-Lasting & Easy to Replace: Each filter lasts 1-3 weeks depending on usage. Comes in a convenient 4-pack for up to 3 months of clean water. Change regularly for best performance—easy, tool-free installation.