Product review (1 stars): Causes the refrigerator's water valve to oscillate badly
This installed okay, but the filter creates an oscillation with the refrigerator's water valve which is loud and sounds like something will be damaged.  It only stops if the incoming water is limited to a uselessly-small flow rate.  I tried 2 or 3 of these with the same result.  The old GE filter and a new one I bought do not have this problem.

This may not happen to you, but for us this was a 1-star product.