Aprilaire 700M Whole-House Humidifier with Manual Control<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Humidifies a tightly-constructed home of up to 4，200 square feet</li><li>Evaporation capacity of 0.75 gallons/hour， which is among the highest capacity humidifiers sold</li><li>5 Year Manufacturer Warranty</li><li>Fan Powered</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41a%2Bi0A%2BmML.jpg" noproxy>