Zerostart &amp; Temro 2204037 Circulation Heater<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Thermostatically controlled: Opens at 190 Degree F， closes at 151 Degree F</li><li>Vertical installation only</li><li>Rugged cast aluminum construction is corrosion and impact resistant</li><li>Copper heating element provides excellent heat transfer</li><li>Dimensions: 2-3/4" x 8-1/2" (7cm x 21.6cm)</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41Ru1RorCtL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/216mF0Bs%2B%2BL.jpg" noproxy>