In this case, the drain cap for Shop-Wet/Dry Vac’s Vacuum is for 2-1/2-inch tank drains, and it’s called 7446800.
To help you, I’ll help you find the drain cap for your old “Trusty Dusty. You can search for your SHOPVAC model number all day long, but you might not have much luck. Let me help. I have a unit that has been around for at least 18 years. It has been able to meet all of the requests I have made of it. It wasn’t even on the table to talk about replacing the unit when we looked at how much a new SHOPVAC costs. I was going to use a bag and a rubber band if I had to. This one is good. Second time I’ve tried it and thank God this one worked. Take a look at the picture and see for yourself. There are happy days ahead.
