GLB Pool &amp; Spa Products 71010 1-Quart Filter Fresh Pool Filter Cleaner<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Removes debris from cartridge filters helps filter operate at maximum efficiency concentrated formula</li><li>The ideal way to maximize your filter's efficiency; remove debris simply by soaking filter in solution overnight and rinsing the next morning</li><li>Refer to filter manufacturer's recommendations regarding maintaining your pool filter at peak efficiency; refer actual label for product precautions</li><li>Compatible with chlorine， bromine， ozone and biguanide sanitizers; this item is not for sale in Catalina island</li><li>Measures 9.9-inches in length by 3.2-inches in width by 3.2-inches in height</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41GwU70iKwL.jpg" noproxy>