Nilfisk ALTO Aero 26-21 6.6-Gallon Wet/Dry Vacuum (107406622) Its 25-liter container capacity, 127 maximum CFM, and 84-inch maximum waterlift. Push & Clean system features semi-automatic filter cleaning for quick and easy maintenance. Lightweight design makes it easy to transport from site to site. Other tools include: 11.5-foot hose, tool holder kit, and extension tube