Husqvarna 445 18-Inch 45.7cc 2-Stroke Gas Powered Chain Saw 45.7cc, 2.8 hp engine Lightweight - 10.8-pound Centrifugal air cleaning system removes larger dust and debris particles before reaching the air filter; this results in reduced air filter cleanings and improved engine life Quick release air filter Side-mounted chain tensioner, Purchase this Husqvarna handheld item along with 3-32 ounce cans of Husqvarna pre-mix fuel, register your product online, and your consumer warranty will be extended from 2 years to 4 years