Product review (5 stars): Fits right and works great
I got this for my Kenmore Elite (model 401.41003010) and it fits and looks just like the original filter.  It came with a timing sticker to put on the side of the cartridge to remind me when to change it, but I usually write the installation date on them in sharpie so I can remember how long they've been in.  I'll comfortably click 'buy again' when this one eventually is used up, I expect it to last 6 months as we mostly use the system for ice.