Broan MHB4 Bathroom Ventilation Fan<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Includes one set of hanger bars with screws</li><li>Hanger bar system is fast， flexible， and easy for all types of construction</li><li>Captive fasteners keep nails in place - no handling needed</li><li>Instantly set the correct mounting height and level the housing between joists with integral bottom locator tabs</li><li>Infinitely adjust the fan housing between joists from a span of 16-inch to 24-inch with hanger bars</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31HC9pXZvTL.jpg" noproxy>