Designed for installations where conventional ventilation simply won't fit. Where multi-family applications require it, the LoProfile™ fan is narrow enough to be installed in a wall between 2x4 studs. When plumbing or electrical obstructions are found behind the drywall in ceiling remodel applications, the LoProfile™ fan can still fit without having to move anything. And that means most any room with space constraints can have powerful, quiet efficient ventilation.
Features:

• Fits in 2x4 ceiling or wall construction
• 80 CFM with 4" duct ensures ample air movement; 70 CFM with 3" duct reducer (supplied)
• 50 CFM at 0.25" static pressure meets ASHRAE 62.2 local ventilation requirements (with 4" oval duct or 3" round duct)
• Only 1.1 sones for extremely quiet operation
• 4" oval or 3" round duct connection for installation flexibility
• ENERGY STAR® qualified for efficient operation and lower utility bills
• Ideal for multi-family applications
• Plug-in, permanently lubricated motor - engineered for continuous operation
• Dynamically balanced centrifugal blower wheel for quiet, efficient performance
• Can be used with RDF1 radiation damper