Product review (4 stars): At first I was worried as the groves in this ...
At first I was worried as the groves in this model were different than the ones on the original filter.  However, to my surprise there was no issue with the fit.  You will see a white film come out if you do not follow the instructions an allow the water to fully run until it is clear.  So use a pitcher and after about 1 and 1/2 fills 2 min max the water ran clear.