Product review (1 stars): Never had any problems with filter install in previous years ...
Never had any problems with filter install in previous years. This time two people in home were unable to push filter in enough to install. Confirmed it was the correct filter for the fridge so had to hire a plumber, who also had difficulty pushing filter in, but with difficultly was eventually able to install filter. Flow is much slower than previous filters and slightly shorter life. Now it's time to replace filter again so checking the manual specifications it calls for 'replacement filter P2RFWG2, part #4396841. Although filters say they are part  #4396841 they state compatible with P1------ filters. I question if this is the problem with the install. I DO NOT want to have to hire a plummer every time the filter has to be changed! I have checked Lowe's (previous purchases), Home Depot, so now checking Amazon and can not find the exact filter (P2RFWG2 #4396841) called for in fridge's manual. Whirlpool has let it's long standing customer down!