Compatibility: ONLY compatible with PETLIBRO Dockstream Cat Water Fountain PLWF105 / PLWF115 / PLWF005. Please verify product dimensions if unsure. 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 longer. 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. Premium replacement filters support your pet’s health by providing clean, fresh water daily. Premium 12-Pack Filters: Includes 12 replacement filters and 10 pre-filter sponges, sealed for quality. Provides a sufficient supply for 3 to 12 months of use. Replace pre-filter sponge every 2–4 weeks. Filter Sponge & Pump Sponge: High-density pre-filter sponge captures fine debris to enhance filtration efficiency. High-density pump sponge protects the pump by trapping particles, helping extend pump lifespan. Product Benefits: Reduces impurities, maintains fresh water Color: As shown in photo Material: Cotton (non-woven fabric) Package Contents: 12 x Replacement Filters 12 x Pre-Filter Sponges Note: This package includes only the items listed above. Light reflection and display settings may cause slight color variations between the image and actual product. Measurement may vary by +/- 1–3 cm.