Steamatic. I've got a similar one, which came with a Steamatic machine I purchased this spring from a guy who retired a few years ago. Mine has a cone about a foot of the floor where the jets are installed. It weighs a ton!
I'll never use it,but may bring it to trade shows to demonstrate how the industry has changed.
I have no idea how anyone would last a day behind that behemoth. That along with the world's heaviest and akwardest hoses to pull would scare off most of the football team from part-time employment. ChuckleChuckle,SnickerSnicker.