The Whirlpool WPW10260500 Air Trap Hose Assembly carries air pressure from the washer tub to the water level pressure switch. One end connects to the air trap, while the other connects to the pressure switch, forming a sealed passage for air movement. As water enters the tub, the rising water level compresses the trapped air and increases pressure inside the hose. This pressure signal... https://www.partsmelange.ca/whirlpool-wpw10260500-hose-assembly-for-air-trap