• Copper Sulfate Crystals
• 5 lb. container coarse granules
• Controls most species of algae including filamentous algae or string algae
• Uses low doses of copper to control algae
• Use 2-1/2 to 4 lbs. per acre-foot
• Works for root control in drain tiles & septic systems
• Easy to cast or dissolve for application
• Made in the USA
• Weight: Approximately 5.19 pounds
• Shipping Dimensions: Approximately 11 x 10 x 4 inches.