I have a previously-owned wet/dry ShopVac that I have only used for its wet mode (basement floods a lot). I now want to "switch it over" to its dry mode for the first time ever:
Not sure if it helps/matters, but the diameter of the black plastic protusion hanging down underneath the top-part is 5 1/2".
My question: what specific part(s) do I need to buy so that this will work in dry mode (and pick up debris and dust), and how do I install them?


