The most noticeable difference between these and older models is the squared off shape and the flat spot on top for placing tools and supplies.
The addition of a tool carrier and storage hooks for the hose and cords are welcome improvements.
These single-speed vacs come with a tool adapter, which connects to the end of the hose. When it’s necessary to reduce suction, the orange ring can be twisted to uncover a slot that opens into the hose. Opening the slot reduces the amount of air pulled through the tool.