The RWF1080 replacement water filter by Tier1 compares to the Fisher & Paykel 836848 water filter. It helps to significantly reduce flavor-impacting impurities for up to six months. Immediately after installation, this filter will start to perform, ensuring you dispense only the purest tasting water and ice that is virtually free of common contaminants and impurities ranging from chlorine, to dirt, to sediment.