Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Product was not Sealed

After I purchased and started using this filter (even though it arrived not sealed), I researched it further and found out there are only a handful of certified suppiers of Everpure filters. You can find those suppliers here [...]. When I purchased from one of these suppiers, I received a filter which was packaged very differently from Amazon's. I recommend purchasing from one of these suppliers even though it is slightly more expensive!!