Complete Filter Maintenance Set: This comprehensive kit includes 6 premium replacement cartridges specifically designed for CF1 filters. Each filter measures 9.5x7.2cm and features primary filtration cotton material that provides optimal water and mechanical filtration for your aquarium system. Superior Filtration Material: Crafted from high-quality primary filtration cotton that effectively captures debris, waste particles, and suspended matter from aquarium water. The dense yet porous structure ensures excellent mechanical filtration while maintaining optimal water rates without restricting filter pump performance. Enhanced Water Quality Performance: These fish tank filter cartridges work efficiently to remove physical impurities and maintain crystal clear water conditions. The filtration media helps reduce ammonia levels and provides a healthy aquatic environment for your fish and plants by keeping water parameters stable. Easy Replacement Procedure: Simply turn off your CF1 filter, remove the old , and insert this replacement unit. Pre-rinse the new with dechlorinated water before installation to remove any initial dust and immediate optimal performance with minimal disruption to your aquarium's ecosystem. Reliable Filter Compatibility: Specifically engineered to fit CF1 internal filters perfectly, ensuring leak-proof operation and maximum filtration efficiency. Ideal for aquarium enthusiasts who want to maintain consistent water quality and provide a healthy habitat for their aquatic pets between regular maintenance schedules. Complete Filter Maintenance Set: This comprehensive kit includes 6 premium replacement cartridges specifically designed for CF1 filters. Each filter features primary filtration cotton material that provides optimal water and mechanical filtration for your aquarium system. Superior Filtration Material: Crafted from high-quality primary filtration cotton that effectively captures debris, waste particles, and suspended matter from aquarium water. The dense yet porous structure ensures excellent mechanical filtration while maintaining optimal water rates without restricting filter pump Enhanced Water Quality Performance: These fish tank filter cartridges work efficiently to remove physical impurities and maintain crystal clear water conditions. Easy Replacement Procedure: Simply turn off your CF1 filter, remove the old , and insert this replacement unit. Pre-rinse the new with dechlorinated water before installation to remove any initial dust and immediate optimal performance with minimal disruption to your aquarium's ecosystem. Reliable Filter Compatibility: Specifically engineered to fit CF1 internal filters perfectly, ensuring leak-proof operation and maximum filtration efficiency. Color: As Shown Material: Non-woven fabric Package Contents: 6 Pcs Cf1 Filter 3 Month Service Kit 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.