https://www.mccoys.com/shop/p/39120002/stihl-4244-007-1800-tune-up-kit
Stihl Tune-Up Kit, Specifications: For Use with BR 350, BR 430, BR 450, BR (450 C-EF) Blower Backpack Blowers, SR 430, SR 450 Backpack Sprayers, Includes: Air Filter, Fuel Filter, Spark Plug
Specifications
For Use with BR 350, BR 430, BR 450, BR (450 C-EF) Blower Backpack Blowers, SR 430, SR 450 Backpack Sprayers
Includes
Air Filter, Fuel Filter, Spark Plug