The LFR duct is an “L” shaped duct with a diameter of 8″. It has a horizontal section of 3 ft and a vertical section that can extend to up to 8 ft. This duct is constructed of a high quality, flame resistant, chemically stable material that exceeds NFPA 70E tests for flame travel (4.5″ max with a 12 second flame). Noise levels are also significantly reduced when using the LFR duct and the ability to collapse and let workers/equipment pass by make this duct very easy to work with.
The LFR duct has an inner membrane on the 3 foot horizontal section and on the first 4 feet of the vertical section adding stability and minimizes friction. The last 4 feet is a flame resistant cloth that can be turned inside out to make the duct the correct length for the job. The LFR is compatible with any Super Vac Nano fan. At only 8 lbs and the ability to collapse into a supplied bag, transportation and storage is a breeze.