FEATURES NSF Certification IAPMO Certification WaterMark Certification Remove 99.99% Chlorine Compatible With Fisher Paykel 836848  EASY INSTALLATION: • Slowly turn the old cartridge 1/4 turn to the left (counterclockwise). • Pull the filter straight down and discard (the water will shut off automatically). • Push the new filter up into the filter cover until the filter stops. • Turn the filter 1/4 turn to the right (clockwise) to lock it into place. • You will feel a stop and the locked symbol should now be lined up with the indicator line above. Do not over tighten. • Run water through the dispenser for 5 minutes to purge the system. Check the filter area for leaks. Fridge Model Number : E442BRXFDU, E442BRMFDU, E522BRXU, E522BRMU, E522BRMFDU, E522BRXFDU, RF610ADUM, RF610ADUX, R0185011 and 67003662, E402B, E442B, ES22B & RF90A180DU, HFD647WISS, E442BRXFDU2, E442BRXFDU4, E442BXFDU, E522B, E522BLXFDU3, E522BLXFDU4, E522BRXFDU4, E522BRXU3, E522BRXU4, E522BXFDU, E522BXU, RF90A180DU, RF522WDLUX1, RF522WDLUX4, RF522WDRUX1, RF522WDRUX4, RF610ADUSX4, RF610ADUX2, XFDU, XFDU2, RF522ADUSX4, RF610ADUX3, E522BLXU3,E522BRXFDU3,RF610ADUSX5,RF522WDLUX5,RF522WDRUX5,E522BRXFDU5,RF522ADUSX5,E442BRXFD5