Easy Installation: Designed for user-friendly installation with detachable adaptors, firmly secured duct ends, an adjustable mounting bracket (up to 24''), simple wiring, and fan/motor units that detach easily from the housing

Durable and Efficient: This Energy Star qualified fan features a permanently lubricated motor for extra longevity, rust-resistant painted fan housing made of heavy-gauge zinc galvanized steel, and a built-in damper to prevent back draft