Hot Tub Serum Total Cleanse For Hot Tubs and Spas<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Gets out the gunk lurking inside the plumbing system</li><li>Water will look， feel and smell better</li><li>Less sanitizer is needed after the Serum "purge"</li><li>Soak and relax in healthy and crystal clear water.</li><li>Each jar will purge hot tub up to 3 times</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41ZV3vmcnGL.jpg" noproxy>