Graco Air Driven Expanding Blade Bung-Mounted Agitator, Low ViscosityLow viscosity (1,000 cps) air driven expanding blade bung mounted agitator Corrosion resistant materials increase durability Threads into 1. 5 or 2 inch drum bung Angled adapter reduces vortexing and allows for off center mounting Customize configuration by adjusting blade height or by adding blade assemblies Collapsible blades fit through drum bung and expand when spinning for efficient mixing Low Viscosity (1,000 cps)