Product review (2 stars): I hope others will/have had better luck.
As others have mentioned, these do fit the discontinued Whirlpool & Bosch filter system HOWEVER, I've been through two of these now and each has only lasted about 6 weeks on my home, under-counter ice maker before the water flow completely stopped from it.  The filters say that they are rated for "6 months or 300 gallons of water (which ever comes first)" and I'm quite certain that I've not run through 300 gallons in 6 weeks.  I hope others will/have had better luck.