Product review (4 stars): Appears equal to and much less expensive than original Kenmore Elite filter cartridge
Ordered these to fit my Kenmore Elite, and they installed and have functioned so far just as well as the (much more expensive) originals. The only difference is that the housings are plastic instead of metal, but the original metal housing seemed only to add undue expense and weight without noticeable affecting performance.

Only in use a couple of months so far, but so far, so good.