Compatibility: Replacement filters are compatible with 3L With Filter, 3.6L, 4.6L, 6L, and 8L automatic pet waterers. We offer a 12-month replacement warranty and 24-hour customer supportplease anytime. Triple Filtration System: The pet water dispenser filter features a 3-layer filtration system. High-density filter cotton traps hair and sediment. Activated carbon removes chlorine and odors while preserving beneficial minerals. Ion exchange resin reduces heavy metals. Ensure Health: This filter helps remove impurities, hair, heavy metals, chlorine, and odors. It softens hard water and improves taste, promoting cleaner, healthier drinking water for pets and helping reduce the risk of urinary tract infections. Warm Tip: Filters are packaged in a reinforced paper box. Before installation, rinse and soak the filter under running water. Replacement Frequency: For optimal performance, replace the filter every 30 to 45 days. More frequent changes may be needed for multi-pet households. Material: Carbon fiber Color: White Package Contents: 8 x Replacement Filters Note: This package includes only the items listed above. Other products are not included. Note: Lighting and monitor settings may cause slight color variations between the image and the actual product. Measurement error is +/- 1-3 cm.