Features: 1. The unclean water tank can negatively impact the health of your farm animals. Eliminate the need for frequent water changes with cloudy tanks. The Water Purifier Cubes are ultra-absorption activated carbon blocks designed to help maintain clean drinking water for farm animals. 2. Water Purifier Formula: Made from honeycombed ultra-absorption activated carbon blocks, these cubes effectively filter dirt, cloudiness, and odors from livestock water troughs. Solid composition with no powder or impurities, preventing discoloration of water. 3. Safe for Animals: Designed to provide cleaner water for various animals, including fish and reptiles. Intended 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 care, each cube lasts up to 6 months for optimal performance. 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 or aquatic pets with Water Purifier Cubes. Note: This product is not intended for use with human drinking water. Notice: Actual color may vary slightly due to monitor differences and lighting conditions. Allow 1–3 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