Plastic cotton mesh: Filter out any debris that may be present in tap water and carefully catch hair, sediment and dirt. Filter cotton for pet water dispensers: Activated carbon in the filter can remove bad odors and peculiar smells, keeping the water clean and fresh. For pet health: Help filter drinking water, let our pets drink water safely and stay healthy. Size 8*4.5*1.5cm Pay attention to choosing the right water dispenser. Cat fountain filter: Replace every 60 days, clean the water dispenser and filter every 2-4 weeks to keep the water fresh. Features: Pet water dispenser cotton filter: Activated carbon in the filter can remove bad odors and peculiar smells, keeping the water clean and fresh. Plastic cotton net: Filter out any debris that may be present in tap water and carefully collect hair, sediment and dirt. Cat fountain filter: Replace every 60 days, clean the water dispenser and filter every 2-4 weeks to keep the water fresh. For pet health: Help filter drinking water, let