Pool Mate 1-2550 Mineral Out and Stain Remover for Swimming Pools， 1-Quart<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>This product helps prevent discoloration of pool water due to iron， calcium， manganese， copper and other metals and minerals which may be present in the water supply</li><li>This product is an excellent general purpose sequestrant which helps protect plumbing and pool walls from rust， stain and scale</li><li>It should be used for all pool openings and closings and throughout the season as needed</li><li>1 quart per 10，000 gallons</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41bq9QhehuL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/412%2Begt7e3L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51LW2dk0TFL.jpg" noproxy>