Product review (1 stars): WaterSentinel WSG-1 filter poor quality, non-functioning (replaces GE MWF or GWF filter)
I bought this filter because of the much lower cost.  I own a GE Profile, model PFSS6PKXASS.
As soon as I installed it, the water line made very loud banging noises as if air trapped in the line.  The filter fitting is incorrectly manufactured compared to the GE brand filter that comes with the fridge.  The opening and threads do not engage the filter head in the fridge correctly and the spring check valve will not work right because of the Water Sentinal WSG-1 filter. Water in the dispenser trickled down to nothing and the noise got louder.  I removed the filter and installed the "bypass plug" to troubleshoot the system.  I checked the electric water valve with a multimeter too.  The valve checked ok.  The bypass plug installed, the noise stopped and the water flowed normal.  I bought a GE brand MWF / GWF filter and installed it in the fridge.  No noise and normal water flow.