Aquathol Super K 6020391 United Phosphorus, Inc. Herbicide 10 lb. Granular herbicide utilizing Culigel super absorbent polymer technology Six times more concentrated than regular Aquathol Excellent for spot treatment of hydrilla, curlyleaf pondweed naiad and Eurasian milfoil Dosage rate is variable according to plant species Available in granular form in 10 and 20 pound bags