Panasonic FV-30VQ3 WhisperCeiling Spot Ventilation Fan - 290 CFM - Quiet, Large Ceiling Mount Bathroom Fan

WhisperCeiling fans feature a totally enclosed condenser motor and a double-tapered, dolphin-shaped bladed blower wheel to quietly move air. Designed for continuous, trouble-free operation for many years thanks in part to its high-quality components and permanently lubricated motors which wear at a slower pace. Detachable adaptors, firmly secured duct ends, adjustable mounting brackets (up to 26-in), fan/motor units that detach easily from the housing and uncomplicated wiring all lend themselves to user-friendly installation. Built-in damper to prevent backdraft, which helps to prevent outside air from coming through the fan. Rust-proof paint, galvanized steel body. 6-in diameter duct adapter. Expandable extension bracket up to 26-in. 4-pole fully enclosed condenser motor rated for continuous run.