Product review (5 stars): GE MXRC Refrigerator Water Filter
I bought this to replace the Culligan filter on My GE Profile that is 14 years old.  It is the exact fit.  Even I  could unscrew  the old one and screw this one in and it worked.  I am so happy with my purchase.  I based  by purchase on other reviews of customers who had bought this model and said it worked for them.  They were "right on" and I could not be happier.  Thanks