The Whirlpool WPW10491331 Dishwasher Lower Spray Arm directs pressurized water across the lower rack for effective removal of food residue from dishes and cookware. Positioned beneath the lower dish rack, this component distributes water through multiple spray openings to reach loaded items during wash cycles. Water pressure from the circulation pump drives the arm's rotation, creatin... https://www.partsmelange.ca/whirlpool-wpw10491331-lower-spray-arm-for-dishwasher