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Title: Long Overdue
Review: First let me say this is an absolutely excellent product. I finally know the exact salinity of my tanks in seconds. There are some great things that come with this Refractometer that are not mentioned in description. It comes with a little bottle of distilled water as well as a mini flat head screw driver to calibrate before your first use. It also comes with a nice mini microfiber cloth to wipe the prism between uses. This is by far the most accurate way to measure the salinity of your tanks water and I can assure you that you will not be disappointed.
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