Product review (1 stars): Not A Satisfactory OEM Replacement Water Filter
If you are considering to purchase the Water Sentinel WSG-1 as a OEM replacement filter for the GE-MWF, be aware of the hidden-fact that, although the (WSG-1) housing cartridge has been designed to fit your GE Refrigerator, the flaw with the (WSG-1) is the small 'constricted-size' of the water port that was designed for water to flow through this filter. The water port on the GE MWF is about 1/2" in diameter which is sufficient in size to allow water to pass through the filter freely & unrestricted.

When I removed the packaging and plastic water port cap seal from the (WSG-1) I discovered that the water-port-hole designed for this filter was not even 1/4" in diameter (less than half of the GE-MWF) and extremely small in comparison to the water-port-diameter of the GE-MWF.

In conclusion, the engineers that designed the GE-MWF obviously decided that a minimum water-port-size of 1/2" was needed for this filter to function properly. In my opinion, whoever designed engineered the Water Sentinel (WSG-1) filter cartridge to replace the GE-MWF, clearly 'shorted-sighted' the OEM guidelines for the diameter of the GW-MWF water-port, and in that regard is the reason why I returned the Water Sentinel WSG-1 to Amazon for a refund.

Unfortunately for the consumer, Brita & Aguafresh have discontinued production of their GE-MWF replacement filters, which consequently has given GE an outrageously ($ high-priced $) monopoly on their replacement filters for their GE Refrigerators.

Activated Carbon is cheap, and so is the plastic filter housing unit. Realistically, this filter could be sold for about the same price as an oil filter for your car and still return a profit. The GE in this case...'G' is for Greed, and 'E' is for the Economic consumer shaft perpetrated by the multinational corporations.