Product review (1 stars): O-ring immediately broke and caused leak.
The first problem:  I have flushed many new filters over the years, until the water ran clear.  I spent twenty minutes flushing this thing and it never fully ran clear.  Then, I opened the door to find the filter leaking.  When I removed the new filter, the O-ring had snapped.  I replaced the new filter with another from the three pack and it seems to be holding--just need to find another half-hour of free time to flush the thing.  Cannot recommend this "budget" filter.