30″ 2-Speed Direct Drive Exhaust Fan with Pull Chain can be bolted directly to the wall. Guard mount exhaust fans are designed for low-pressure exhausting and cooling applications. Three aluminum fan blades are enclosed in steel spiral wire guards for safety. Wire guards feature built-in mounting holes for easy installation. 1/4 HP, 120V, single phase motor is totally enclosed and permanently lubricated for long life, UL listed. Exhaust fans feature pull chain operation. Includes junction box for direct wiring. Optional Wall Shutters available.