Product review (5 stars): Easy to replace
Happy to find this on Amazon slightly cheaper than my local appliance store (and easier with free shipping).  Easy to replace ... wasn't positive that my filter needed replacing on my Samsung side-by-side, but the side of the filter box tells you that the filter indicator on the fridge (normally blue), turns red when it needs replacing.  So I waited a few weeks to actually replace the filter, and sure enough, the indicator did eventually turn kind of red.  The box mentioned that it might be difficult to replace without turning off the water supply, so I had my husband change it out.  He had to turn the old filter fairly hard to get it out, but it came out (and new one went in) without having to turn off the water supply. Overall, very happy with the purchase.