How to remove the water filter located in the bottom grille of the refrigerator with the “turn lock” method – Locate the filter and turn the knob on the end of the filter to the left. Then simply pull the old filter out and throw it away.Insert the new water filter and turn the knob to the right to lock it into place.inished! How to remove the water filter on the front of the refrigerator compartment using the “slide out” method – Open the filter compartment on the front of the refrigerator and remove the filter. Discard the old filter. Next, slide the new filter into the compartment and back into place.