Robelle 2112 Clear Water Combo Pack For Swimming Pools<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Includes one quart 3-Month Algaecide and one quart 4-in-1 Water Treatment</li><li>3-Month Algaecide kills and prevents blue-green algae， yellow algae， and black algae</li><li>3-Month Algaecide is non-foaming and lasts 90 days</li><li>4-in-1 Water Treatment clarifies water</li><li>4-in-1 Water Treatment prevents oil and scum deposits</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51r-fuSQ51L.jpg" noproxy>