Product review (1 stars): Does NOT FIT 4396701.
Ordered these as a replacement for Whirlpool 4396701.  We ordered in July 2016 so that we would have replacement on hand for the next cycle.  Well, we need them now and they don't fit at all.  Same results that Sbird1999 wrote on April 3, 2016 - the cartridge goes in, but does not turn and fit.  We tried all 3 with the same results!