Features: 1. Unclean water tanks can be harmful to the health of farm animals. Eliminate the need for frequent water changes with Water Purifier Cubes, made of ultra-absorption activated carbon blocks that help maintain clean and clear drinking water for livestock. 2. Water Purifier Formula: These cubes are constructed from honeycombed ultra-absorption activated carbon blocks designed to effectively filter dirt, cloudiness, and odors from animal water troughs. The solid composition contains no powder or impurities and will not discolor water. 3. Safe for Animals: Formulated specifically to provide clean drinking water for a variety of animals, including fish and reptiles. For animal use only. 4. Easy to Use: Simply place the cube into the water tank. Rinse with warm water before initial use. The cubes are reusableclean with mild soap and warm water, then return to the tank. With proper maintenance, replace every 6 months to ensure optimal performance. One cube treats up to 150 liters of water. Depending on tank size, multiple cubes may be required. 5. Ensure clean drinking water for your animals with Water Purifier Cubes. Order yours today. (Note: This product is not intended for use with human drinking water.) Notice: - Actual color may vary slightly due to differences in monitor displays and lighting. - Please allow 13 cm variation due to manual measurement. Specification: - Material: Natural activated carbon, sepiolite clay mineral - Size: 10 x 10 x 10 cm - Includes: 1 / 2 / 4 (optional) x Water Purifier Cubes Shipping Information: All orders are shipped within 3 business days after payment confirmation. Delivery typically takes 812 days, depending on location. Customer Service: If you have any questions, please . We respond to inquiries within 24 hours. Thank you for your support and we hope you enjoy your purchase.