Dishwashers Reversing Quad Blade Wash Arm

The unique reversing quad blade design on the lower wash arm has 25 angled jets to provide full wash coverage as it rotates clockwise and counter-clockwise, spraying items from every angle. When the direction of the wash arm changes, the jet pattern and wash coverage changes. 

 

Jets: The 25 jets don't all spray at the same time. Half the jets spray when the arm turns clockwise, and half spray when the arm turns counter-clockwise.

 

 

View how the Reversing Quad Blade lower wash arm works: