Aquarium Canister Filter System With Hoses For Optimal Water Flow. Enhance Your Aquarium's Filtration System with the Water Inlet Outlet Tube Kit, Crafted for Superior Water Flow and Efficiency. Constructed from Durable, Transparent Plastic, This Kit Not Only Boosts Performance but Also Seamlessly Integrates into Your Aquarium's Aesthetic. It Includes a 30cm Inlet Tube and a 16cm Outlet Tube, Making It Compatible with Popular Filters Like HW-603B/602B and Eheim 250/300/600. Ideal for 12mm Tube Systems, It Ensures a Perfect Fit for Optimal Aquatic Maintenance. Features: - Robust, Transparent Plastic Build - 30cm (11.81 Inches) Inlet Tube - 16cm (6.30 Inches) Outlet Tube - Enhances and Controls Water Flow - Compatible with HW-603B/602B and Eheim 250/300/600 Filters - Tailored for 12mm Tube Systems *Note: Slight Measurement Variations May Occur. Monitor Settings May Affect Color Perception.*.