Dynamo wet dry: The new Dynamo series of wet/dry vacuums combines a host of impressive features including whisper quiet operation and incredible suction power-at a price that flattens the competition. The 5 and 8-gallon models are perfect for small spills and pickups without the need to drag out more cumbersome equipment. These models are compact for easy transport and storage yet powerful enough for heavy-duty commercial settings. A special noise reduction design means you can work anywhere, anytime without causing a disturbance. An optional HEPA filter is available with both models for three-stage filtration. Choice of stainless steel or polyethylene tank.