Features: 1. The unclean water tank can negatively impact the health of your farm animals. Reduce the need for frequent water changes with Water Purifier Cubes, which are ultra-absorption activated carbon blocks designed to help maintain clean drinking water for livestock. 2. Water Purifier Formula: These cubes are made of honeycombed ultra-absorption activated carbon that helps filter dirt, cloudiness, and odors from animal water troughs. Solid composition with no powder or impurities, and will not discolor the water. 3. Safe for Animals: Designed to provide cleaner water for various animals, including fish and reptiles. For animal use only. 4. Easy to Use: Simply place the cube in the water tank. Rinse with warm water before initial use. The cubes can be rinsed with warm water and reused. With proper maintenance, each cube lasts up to 6 months. One cube treats up to 150 liters of water. Depending on tank size, multiple cubes may be required. 5. Help ensure cleaner drinking water for farm animals and aquatic pets with Water Purifier Cubes. Note: This product is not intended for purifying drinking water for human consumption. Notice: - Actual color may vary slightly due to monitor settings 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. For any questions, please we respond within 24 hours. Thank you for your support and we hope you enjoy your purchase.