Fantech Single Point Bath Exhaust Kit (PB 110). This kit replaces the REG 100 and PB100Do bathrooms fans have to sound like a wind tunnel to get the job done? The truth is, noisy bathroom exhaust fans lose much of their effectiveness, simply because people don't want to use them. So, odor, moisture, mold and mildew build up. Even the most elegant bathrooms become unattractive, and may suffer long-term damage. Fantech bathroom exhaust fans are designed to operate quietly and effectively, so people actually use them. Yet their affordability means they're right for every bathroom-from simple to luxurious. Requested by clients. Specified by designers. You'll find Fantech bathroom exhaust fans specified on the blueprints of top architects and designers. Why? Simple. They're quiet, efficient and reliable, and they're easy to install. Better still, Fantech offers a choice of interior and exterior mounted fans. So there's a Fantech bathroom exhaust fan for every situation. This kit is for single point exhaust. Includes: * 110 CFM Airtight Galvanized Steel Inline Fan * 6" Diameter Celing Grille * Grille Housing with Damper * (4) Hanger Bars * Fan Mounting Bracket The PB 110 includes all basic components- the only additional elements required to complete the installation are flexible 4" ductwork and roof or side vent. Grill housing: 6"L X 6"W X 5 1/2" H. Fits between 2x6 construction. INSTALLATION TIPS Locate vent as close as possible bath fixtures (toilet, showers, and hot tubs Fantech recommends the use of insulated flexible duct for the exhaust system Place at least 8 feet of duct between intake grill and fan (insulated flexible duct allows sound from the fan to dissapate gradually so that it can not be heard in the bathroom)