In The Swim Super Pool Algaecide - 1 Quart<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>NOTE: We are currently unable to ship Super Algaecide to the state of California due to State Restrictions</li><li>Fast-acting Super Algaecide eliminates and controls most types of algae</li><li>Contains 23.5% Copper Triethanolamine Complex (7.1% Metallic copper equivalent) as the active ingredient</li><li>Non-foaming formula. Safe to swim immediately after use.</li><li>Dosage: 2 oz. per 10，000 gallons. NOT recommended for use in well water.</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41QWvV3g0lL.jpg" noproxy>