Let's try again because this answer is not an answer. I know this hose works with the backpack Vac. I own a new backpack vac purchased at Home Depot. I've just started to use it, it works great, and the wand is not needed in one of my uses. I need a longer 15 ft hose. I don't want a full 15ft hose, because I also need the shorter 6ft and 9ft hoses so coupling them together is the preferred solution to get the right length. As far as I can tell, there is no coupler. Why not? The SDS Max Dust Extraction Attachment works with both the 6 ft stock hose that comes with the backpack vac and will also work with this 9ft hose used by themselves. I want to join the two hoses so I will have a 15 ft hose (or buying 2 which would give 18ft) and put the SDS Max Dust Extraction Attachment on the end. By using a 9 or 12 M18 battery it will work for quite a longtime when drilling concrete which will create a hole I can then run wire through and eliminate the concrete dust on the lift, clothing, tools, environment.
Hi John! Our 1-7/8 in. x 9 ft. Pro-Grade Vacuum Hose for M18 FUEL Backpack Vacuum (#49-90-1964) is only compatible with our M18 FUEL 3-in-1 Backpack vacuum (0885-20, 0885-21HD).