Quoted from Gundam_Pilot_:
You need to actually go to the store. It said none of my stores had any but I found 2 at one store and 1 at another
Or call the store directly and give them a detailed description, with colors, of the "wet/dry vac" along with the item number and model number. While they might be able to find it on the floor and put one on hold for you, once you're there to pick that one up, go back to where they had them on the shelves and look for more(if you want to get more than one).
I say all that because at no point during my many phone conversations with store employees, store managers, and the corporate ordering center did anyone have the correct amount of inventory that actually existed in the store that I got them from. I heard 3, then 2, and even 1 when I had them hold it for me. When I got there, there were four. I'm not sure if it's customer service that is withering away like dust in the wind or the employee's brain cells. I could flip a coin.