The strain reliever is used in a number of household appliances, and is most often found in washers and trash compactors. The strain reliever is used to alleviate stress from the hose (or in some cases, power cords) within the appliance. This helps extend the lifespan of the appliance, and minimizes the risk of leaks and broken parts with...Read morein the machine. This part is made from plastic and is sold individually. It is a genuine OEM part that comes right from the manufacturer, ensuring the best possible quality.