SAFWAT 847201 Filter compatible with Fisher & Paykel refrigerator models: RF523GDUX1, RF523MLDUX1, RF523MRDUX1 Filter Life: Every 6 months or when the "Change Filter" light comes on Please confirm your filter or fridge part number. The 847201 water filter cartridge is a quality replacement to suit some Fisher & Paykel Activesmart Integrated refrigerator models. This filter removes unwanted contaminants from your water supply to ensure that your refrigerator water and ice is clean and tastes great.