There's been some question (myself included) as to why the redmax blowers were listed as 2-3 lbs lighter then the Husky equivelents with the 170 and 180 models, when they are the same thing? The results are in. Redmax apparently rates their blowers dry weigh, with no tubes mounted to them. If you weigh the redmax with the tubes, they come out to the same weight as what husky posts their at. If you weight the husky without the tubes, it comes out to the same weight redmax posts their at. Hope this helps.