The Whirlpool W10859935 Dishwasher Lower Spray Arm efficiently distributes water to ensure thorough cleaning of dishes. It rotates during the wash cycle, spraying water evenly across the lower rack for optimal coverage. Designed for durability, it is used to break down food particles and rinse away detergent effectively. The well-angled nozzles enhance water pressure, improving cleaning performance while preventing residue buildup. It contributes to consistent washing results, is easy to maintain, and replaces with dishware cleanliness and minimal maintenance effort.