Product review (5 stars): Great Product
Between the Water Sentinel filter or the $40 Samsung filter, I can't imagine why anyone would buy the Samsung filter.  Besides this Water Sentinel filter being HALF the price of the EXTREMELY OVERPRICED Samsung filter, I think this filter meets or exceeds the quality of the Samsung.  Furthermore, I found my Samsung filter to have an odd taste.  I was nervous to get this product but I took a chance.  I read and followed the instructions and also spread a thin coating of the o-ring grease they supplied on the surface of the 2 o-rings.  At first there was some sputtering and the water had trouble to come out but after a moment the water came out fine.  Everything is working great and the water tastes good.  (I don't understand why filters are expensive, this filter is a bit more expensive then the cheapest ones I found but still half the over-priced Samsung filter).  I would encourage the manufacture to find a way to put a tamper seal on the valve so customers know this has not been used.  Will I buy again... absolutely yes.