There is pretty much no difference between the Husqvarna 580BTS Mark III and the Husqvarna 580BFS Mark III The main difference is that the 580BTS Mark III has a tube throttle, while the 580BFS Mark III has a hip throttle. Whether the hip-mount or the tube-mount is better is a matter of personal preference.
| Husqvarna 580BTS Mark III | Husqvarna 580BFS Mark III |
|---|---|
 |  |
| $639.99 at Acme Tools | $639.99 at Acme Tools |
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