Will not work with V7 without adapter. The adapter you need isn't included (which absolutely sucks compared to the cost). You can still get it to work, but you'll be holding the nozzle on the vacuum with your hands while using it. I noticed a few things. This is not an electric drive. Runs on suction, not batteries. I was interested in the red circle you see in the pictures. I thought it was an air valve.
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