Leisure Time S Instant Cartridge Clean 16 Fl Oz.<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Convenient and easy to use</li><li>Compatible with all sanitizers including chlorine， bromine， ozone and biguanide</li><li>For more than 25 years， Leisure Time has been the premier name in spa water care</li><li>Quickly removes oil， grease and calcium from filters</li><li>Great to use when there isn't time to soak a filter cartridge</li><li>Blue color indicates coverage</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41TCLRXhjwL.jpg" noproxy>