Nederman NCF Fan Sound Enclosures are complete and consist of a fan, flexible connections between fan and inside box, vibration absorbers and two cable glands for electrical connection. The fan motor is cooled separately. All Sound Enclosures are designed for both indoor and outdoor use, and are possible to lift from underneath with a fork lift.Hull made of galvanised sheet metal steel. Two sizes of Sound Enclosures cover all NCF fans.