HTH 86224 Spa Metal and Stain Control， 1-Pint(packaging may vary)<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Hth， pt， spa metal &amp; stain control， prevents Copper &amp; other metal stains， disperses soy protein in water to promote soothing spa experience， active ingredient-etidronic acid 5-10percent</li><li>Adds Extra shine to your product</li><li>Manufactured in China</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31EHqVWr9ZL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/311N0YBidIL.jpg" noproxy>