Product review (2 stars): Hit or miss on these filters
The first set of three of these I purchased was great!  They lasted a long time.  Then I got the second batch...  These were not good.  After a few weeks they flow rate decreased very rapidly.  After 3-4 weeks they flow rate dropped enough the ice maker stopped making ice; it would take over 45 seconds per 8 oz of water (~0.08 gpm).  I have since purchased an actual LG filter and it has been running for a month or so now and the flow is much closer to 0.5 gpm (normal).