A water filtration device installed directly on the water supply line leading to a washing machine intercepts sediment, rust, and other impurities before they enter the appliance. This typically involves a housing containing a filter media, often a mesh screen or other specialized material. For example, a common type employs a multi-stage filtration process incorporating sediment removal and scale inhibition.
Protecting washing machines from particulate contamination contributes to their longevity and efficiency. Cleaner water can lead to improved washing performance, requiring less detergent and potentially extending the lifespan of clothing. Historically, concerns about hard water and its impact on appliances drove the development of these protective devices. As water quality varies significantly across different regions, these filters offer a standardized approach to safeguarding washing machine components.