The Whirlpool WPW10327455 Upper Spray Arm distributes water throughout the dishwasher to help remove food residue from dishes during wash cycles. Positioned in the upper section of a compatible dishwasher, this component rotates as pressurized water flows through its spray openings, directing water across glasses, cups, and other items on the upper rack. Proper water distribution supp... https://www.partsmelange.ca/whirlpool-wpw10327455-upper-spray-arm-for-dishwasher