Brand Copper Sulfate Crystals

Instantly and effectively kills most forms of algae including swimmers itch. Easy to apply and economical. 5 lbs of Copper Sulfate treats about 10,000 square feet of filamentous algae (100x100 feet area or .23 acre). This dose depends on Algae type, give us a call and we can help you estimate how many total pounds you need based on your algae. Made in the USA