[Perfect Compatibility] - Replacement cat fountain filters compatible with 84oz Dockstream wireless cat water fountain models PLWF005, PLWF115, and PLWF105. (Filter size: 3.78 x 2.28 x 0.39 in | Sponge size: 1.37 x 1.18 x 0.35 in). [Premium 12 Pack Filters + 12 Pack Sponges] - Package includes 12 replacement filters and 12 pre-filter sponges. Each set is individually packaged and sealed to maintain quality. [4-Layer Vertical Filtration] - 1. Ion exchange resin removes heavy metal ions and softens water. 2. Activated carbon reduces odors. 3. Non-woven fabric traps impurities and pet hair. 4. Built-in pump sponge helps prevent debris buildup and protects the pump. [Replace The Filter Regularly] - Multi-layer filtration helps remove contaminants and provides cleaner, fresher-tasting water. For best results, replace filters every 2-4 weeks. Clean the fountain regularly, especially if used by multiple pets. [Optimal Usage] - Soak the filter for 5 minutes and rinse before use to minimize activated carbon dust from entering the water. This dust is not harmful to pets. Color: White + Black Material: Non-woven fabric Package Contents: 12 x Replacement Filters, 12 x Sponges Note: The package includes only the items listed above. Light reflection and display settings may cause slight color variations. Measurement may vary by +/- 1-3 cm.