Compatibility: ONLY compatible with PETLIBRO Dockstream Cat Water Fountain PLWF105, PLWF115, and PLWF005. Please verify product dimensions if uncertain. Easy to Install and Clean: These replacement filters are simple to remove and replace, saving time during cleaning. Soak the filter and sponge in water for at least 3 minutes before first use to activate optimal filtration performance, then rinse thoroughly under running water. Helps keep water fresh for a longer period. Healthy Filter Ingredients: Triple-stage filtration system includes activated carbon, ion exchange resin, and non-woven fabric. Effectively reduces impurities such as pet hair and heavy metals while improving water taste and quality. Supports your pet’s health and hydration with consistently clean water. Premium 12-Pack Filters: Includes 12 premium replacement filters and 12 pre-filter sponges, sealed for quality. Provides a sufficient supply for 3 to 12 months of use. Replace the pre-filter sponge every 2 to 4 weeks for best results. Filter Sponge & Pump Sponge: High-density pre-filter sponge captures fine particles to enhance filtration efficiency. High-density pump sponge protects the water pump by trapping debris, helping extend the pump’s lifespan. Product Details: Color: As shown in photo Material: Cotton (sponge components) Package Contents: 12 x Replacement Filters, 12 x Pre-Filter Sponges Note: This package includes only the items listed above. Light reflection and screen settings may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.