Complete Set: Includes 12 Cat Water Fountain Sponge Filters, perfect for maintaining your pet's fountain Premium Material: Made from polyurethane and activated carbon, these replacement foam sponges are safe for your cat or dog Pump Protection: Effectively filters hair and debris, preventing clogs and extending the life of your pet fountain pump Health Assurance: Provides clean, fresh water, crucial for your pet's health and hydration Usage Tip: Rinse the pet fountain filter replacement before use; change every 1-2 weeks for optimal performance Complete Set: Includes 24 Cat Water Fountain Sponge Filters, perfect for maintaining your pet's fountain Premium Material: Made from polyurethane , these replacement foam sponges are safe for your cat or dog Pump Protection: Effectively filters hair and debris, preventing clogs and extending the life of your pet fountain pump Health Assurance: Provides clean, fresh water, crucial for your pet's health and hydration Usage Tip: Rinse the pet fountain filter replacement before use; change every 1-2 weeks for optimal performance Color: Black Material: Filter Cotton Package Contents: 24 Pack Cat Water Fountain Sponge Filters Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.