Makita BBX7600N 75.6 cc MM4 4-Stroke Engine Backpack Blower Powerful and fuel efficient 75.6 cc 4-stroke commercial duty engine Meets or exceeds EPA and CARB exhaust and evaporative emissions regulations Padded shoulder straps and ventilated back panel with lumbar support for improved operator comfort Large capacity air filter is replaceable and easily accessible Powerful and fuel efficient 75.6 cc 4-stroke commercial duty engine Meets or exceeds epa and carb exhaust and evaporative emissions regulations Padded shoulder straps and ventilated back panel with lumbar support for improved operator comfort Large capacity air filter is replaceable and easily accessible;Large capacity muffler ensures quieter operation 74 dB(A) Item is non returnable