A water filtration device fitted directly into the water supply line of a washing machine intercepts sediment, rust, and other impurities before they enter the appliance. This type of filtration system typically involves a canister containing a filter media, often a mesh screen or other specialized material, which traps particulate matter. An example is a filter installed on the supply hose connection at the back of the machine.
Protecting washing machines from the damaging effects of hard water and particulate matter contributes to their longevity and efficiency. Cleaner water can lead to improved washing performance, requiring less detergent and reducing the likelihood of scale buildup on internal components. Historically, such filtration was less common, but with increasing awareness of water quality issues and the desire to extend appliance lifespan, these devices have become increasingly popular.