The Whirlpool WP356363 Washing Machine Siphon Break is a water inlet component designed to prevent unwanted backflow through the washer’s water supply connection. It interrupts siphoning by allowing air into the water pathway, reducing the risk of water flowing backward through the connected supply line. Installed within the designated water connection system, this part supports proper water flow and backflow prevention. A damaged or faulty siphon break may affect water movement through the inlet assembly. This replacement component is intended for compatible washing machine models, with fit and connection requirements depending on the appliance design.