Armstrong 110223-308 1/20 Horsepower Astro 250SS Wet Rotor Circulator， Stainless Steel<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>No mechanical seals to leak</li><li>Vent plug for initial purging</li><li>Noryl impeller</li><li>Flange kit required</li><li>2-bolt flange connection</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41ozpyPAeeL.jpg" noproxy>