Canarm Wall Exhaust Fan - 8in., 2-Speed, 1/40 HP, Model# S8-B2 [Misc.] Totally enclosed and thermally protected motor Galvanized blades are well-balanced for durability and efficiency Heavy wire chrome-plated OSHA guards Rugged steel welded box housing with durable powder-coated finish Aluminum louver shutters with long life nylon bushing