Reverse osmosis

Reverse osmosis (RO) supplies for saltwater aquariums

Browse our RO (reverse osmosis) items and purchase a RO unit to help you maintain your water parameters for your reef tank.

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    AutoAqua Digital Inline TDS Meter Titanium One


    Brand: AutoAqua

    Model: Titanium One (TDS-100)

    Type: Digital inline TDS meter

    Range : 0-999 ppm

    Resolution : 1 ppm

    Accuracy : +/- 2 %

    Power Source : CR2032 Lithium Battery

    Battery Life : 1 year