Product review (5 stars): Works as advertised
When the replace filter light appeared on my GE fridge, I removed the filter, shook the water out of it into a clean and clear glass.  Fine particles were clearly visible in the water.  I re-inserted the filter, used a new glass and pulled the water.  No particles were visible and the replace filter light did not come on.  Two conclusions: 1) this filter works as advertised, and 2) pour the water out and re-use, no need to buy a replacement at this time.