Portable Type Shelter for Tank has the feature that it is directly coupled to fractional horse power motor of speed 1440 rpm. The Shelter can be clamped to tank or mounted on a stand post. The Shelter ensures sturdy support to the shaft. The Shelter has the feature that flexible coupling isolates the drive shaft from the bending moment of agitator shaft. The Portable Type Shelter for Tank has various components housed inside corrosion proof cast iron housing.