Waterdrop WDS-RPWF-2 is an advanced water filter replacement for RPWF, tested and certified by NSF International against NSF/ANSI Standards 42 and 53, and NSF/ANSI 372 (<0.25% lead). It reduces a wide range of contaminants, including chlorine, taste and odor, sediment, rust, and heavy metals. It provides clean, fresh-tasting water for drinking, cooking, and making beverages. The filter has a lifespan of 300 gallons or 6 months and should be replaced accordingly to maintain optimal performance.