Description features: 1. Unclean water tanks are harmful to the lives of farm animals. Say goodbye to the hassle of constantly replacing turbid water tanks. The Water Purifier Cube is a super-absorbent activated carbon block that maintains clean drinking water for your farm animals. 2. Water purifier formula: The water purifier cube is made of honeycomb super-absorbent activated carbon blocks, which can effectively help filter dirt, turbidity, odor, etc. in livestock and poultry troughs. The ingredients are solid, no powder, no impurities, and will not cause black water. 3. SAFE FOR ALL ANIMALS: Water purifier cubes are made specifically to provide clean water to all animals, including fish and reptiles. Safe for use on animals only. 4. Easy to use: Just put it in the water tank. Just wash it with soap and warm water and you can put it back in the tank again. Wash the cubes with warm water before use. These cubes are durable and easy to maintain, but replacement is recommended every 6 months to ensure animals have access to clean drinking water. 1 cube holds 150 liters. Depending on the size of the tank, several blocks may be needed. 5. Ensure clean drinking water for farm animals or fish with the Water Purifier Cube Buy Now (Note: This product is not suitable for human drinking water.) Note: 1. Due to different monitors and lighting effects, the actual color may vary slightly from the image. Please allow 1-3cm deviation due to manual measurement. Specifications: Material: Natural activated carbon, sepiolite clay mineral Size: 10*10*10cm Includes: 1/2/4 (optional) x water purifier cube