This is a dust cyclone and pre-filter to collect sawdust and chips. It was designed in Germany for flooring contractors, but works terrific for home/hobby woodworkers to collect sawdust before it could go into your ShopVac. The canister is heavy-duty steel with quality wheels bolted to a steel plate. This thing is a beast. But wait, there's more! The top is a Dust Deputy cyclone manufactured by Oneida Air Systems, the pioneer in dust collection.
You will need to supply your own wet/dry vac and hose to your woodworking equipment.
The tank is 13.2 gallons. The dust ports are standard wet/dry vac (2 ½") hose compatible, which means the O.D. tapers from 2" to 2 3/16".