The M18 Fuel™ 9 Gallon Dual-battery Wet/dry Vacuum Brings Unmatched Performance, Durability, And Versatility To Jobsite Cleanup. The Powerstate™ Brushless Motor And Optimized Components Outperform 4.25 Peak Hp Wet/dry Vacuums, Delivering More Cleaning Power Than Corded. The Dual-battery Motor Head Requires (2) M18™