| 摘要 |
A duct cleaning attachment includes a hollow body having an exterior surface with a curved under-belly, one of a tapered or rounded leading end, a trailing end, and an interior surface defining an interior cavity. A coupling is positioned at the trailing end wherein the body is coupled to a hose from a vacuum source in a manner that results in air being drawn from the interior cavity by the vacuum source. The body has openings from the exterior surface to the interior surface.
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