WaterSentinel WS-21 Calcium Inhibitor Filter and Misting System Protector<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Polypropylene</li><li>Made in US</li><li>Quick， 1-step installation with the same OEM performances.</li><li>Prolongs nozzle life by preventing scale buildup from clogging up.</li><li>For use with all outdoor cooling systems.</li><li>WaterSentinel brand ensures the highest standard.</li><li>102 Day warranty against manufacturer defects from date of sale with invoice from WaterSentinel. For Customer Service call 866-218-8473</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41Rq0rWKIGL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31tSJ8bq3SL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41UNhf0XJRL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31RszQfqHmL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51rCz8qILVL.jpg" noproxy>