Product review (1 stars): DEFECTIVE PRODUCT but allegedly corrected by manufacturer. GOOD customer service (call via web site)
DEFECTIVE PRODUCT: Had 3 pack, only two worked. CANNOT RECOMMEND.  Repairman suggested inline (cheaper) water filter at water inlet as off brands not reliable. Agreed ridiculously expensive from manufacturer. Can use much cheaper in line filter on water supply and ignore proper filter. (Mine could placed on wall since doesnt go all the way back because need forward enough for door to open.) I don't think pulling refrigerator out every 6 months (to clean behind also) any worse than prone on floor changing filter. BUT should remove bottom front to vacuum up dust on heat diffuser. Also DO NOT use any similar product that comes without plastic protective cap on can (not just wrapped in plastic). Doesnt adequately protect filter without it (i.e. seals and cleanliness. plastic gets in hole, etc.). This one has the cap.
Another tip: my fan motor stopped working, detected when edge at seal too hot. Used regular fan with cardboard type back of refrigerator removed to cool compressor until repaired. Repairman said backing (cardboard type thing) needs to be in place for fan (repaired part) air to properly cool compressor.
For those who insist on no change in system, I found filter difficult to remove after 6 months. Repairman suggested coating with vegetable oil (only use edible lubricant) even though is lubricated. I also found using wrong end (handle) of medium or large channel lock pliers helped give enough leverage to turn plastic on filter end (part of refrigerator floor grate) without breaking it.

FOLLOW-UP. CALLED SELLER: Apparently manufacturer had problems during time of my purchase in 2016. Allegedly problem found and quickly fixed. Have been promised a free replacement. Will not change current one that is working, but was good customer service. Havent yet checked other water filters placed in line as suggested to me (above) but remains an alternative, especially if like mine where has a ready connection. Am friends with and awaiting reply from plumber although think I need only opinion and ultimately IS DIY type project.