Hanna HC HI755-11 Calibration Set - Marine Alkalinity ® Skimmer Continuum Reagents Refractometer Calibration Standard

Continuum Reagents Refractometer Calibration Standard is designed to provide an accurate reference for the calibration of seawater refractometers

Salifert KH Carbonate Hardness / Alkalinity Profi Test Kit - 100-200 Tests

It can be mounted hanging on the back of the aquarium or below the aquarium

Finally we've added  sliding glass covers over the sump to help reduce evaporation

Improves coloration and will help to maintain health and vitality

Hanna HC HI755-11 Calibration Set - Marine Alkalinity ® Skimmer Continuum Reagents Refractometer Calibration StandardThe Marine Alkalinity Checker HC Calibration Check Set HI755 11 provides a simple solution to validating the Marine Alkalinity Checker HC HI755 that has a range of 0 to 300 ppm CaCO3. This high quality set of standards is manufactured in our state of the art facility and comes supplied with a Certificate of Analysis. The Certificate of Analysis provides the lot number, reference values and expiration date for traceability when certifying the