For blowing performance that exceeds all expectations, count on Husqvarna's 580BTS II backpack blower. The 580BTS II is Husqvarna's most powerful backpack blower. Featuring best-in-class fuel capacity*, the blower helps you keep your professional productivity at its peak. Powered by Husqvarna's innovative X-Torq® engine technology, you'll enjoy more fuel savings and fewer emissions. Tool-less handle adjustment and air filter access ensure easy servicing in the field. The hip/belt strap offers better weight distribution during long periods of use. When you need the best in the business, get a Husqvarna 580BTS II backpack blower. (*Based on fuel tank volume (floz). Class defined as pro-grade gas backpack blowers with engine displacement in the 75cc to 80cc range.) Product Highlights High blowing capacity: Effective fan design provide high blowing capacity Commercial grade air filter: 2-stage intake air filtration results in less down time Cruise control: Air speed cruise control Air Injection: Air Injection, longer operating time. X-Torq® engine: X-Torq® engine cuts emission and fuel consumption LowVib®: LowVib® reduce vibrations Ergonomic harness: Comfortable, load-reducing harness Product Specifications Engine Cylinder displacement: 75.6 cm³Power output: 4.3 hpMaximum power speed: 7,200 rpmFuel tank volume: 87.9 fl ozIdling speed: 2,000 rpmElectrode gap: 0.03 inFuel consumption: 464 g/kWh Capacity Air flow in housing: 1,077 cfmAir flow in pipe: 941 cfmAir speed (round nozzle): 206 mphBlowing Force: 41 N Dimensions Weight: 26.3 lbsProduct Size, LxWxH: 12.76 x 20.24 x 21.26 inTube diameter: 3.386 in Equipment Vacuum Kit: NoNozzle type: Round