Answer Hello Bigalgar. You will remove the water lines going to the water head WP67004106 from the water valves. Unsnap the head from the filter housing. Then push the lines into the refrigerator and pull the head unit out the front of the refrigerator. Reinstall in reverse order. Hope this helps. Read More... Answered by AppliancePartsPros.com | Wednesday, September 14, 2011