Express Water Reverse Osmosis Alkaline Water Filter | Worth it?

Express Water Reverse Osmosis ROALK5D

Product : Express Water ROALK5D, ROALKUV10
Type : Reverse Osmosis UnderSink Drinking Water Filter
Filtration Stage : 6 (ROALK5D), 7 (ROALKUV10)
Product Warranty :  1 year
Recommended For : City and Well Water Source, Large Household.

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