Red Sea Reef-spec Seawater Refractometer Substrate Push the bubble counter stem

Push the bubble counter stem into the top of the fine adjustment valve - it will seal however is not a 'tight fit'

Weight Approx

000 ppm (mg/L) with added traces of Iron

Aquarius pumps offers a 2-year guarantee

Pickup in store or MELBOURNE METRO DELIVERY only

Red Sea Reef-spec Seawater Refractometer Substrate Push the bubble counter stemSEAWATER REFRACTOMETER High Accuracy Seawater Refractometer Red Seas Seawater Refractometer offers exceptional accuracy, for measuring the absolute salinity of seawater at a temperature of 25oC 77 0F. Most refractometers used within the aquarium hobby are not specifically designed for reef aquariums and use an algorithm for the measurement of brine (NaCl rather than seawater) and at a temperature of 15oC 59 0F rather than 25oC 77 0F. Thus, a