Red Sea Seawater Refractometer - Accurate Salinity Measure d-d to prevent wildlife such as

to prevent wildlife such as tadpoles

Concentration: 5 mL (1 capful) per 200 L of water

User-Friendly Design: Comes in three 100g pre-measured bags for simple installation and replacement

Genuine Eheim replacement parts

Red Sea Seawater Refractometer - Accurate Salinity Measure d-d to prevent wildlife such asThe Red Sea Refractometer R12018 is an advanced instrument designed specifically for measuring the absolute salinity of seawater at a standard reef aquarium temperature of 25C (77F). This precision device eliminates the need for seawater or temperature compensation factors, as it is calibrated precisely for natural seawater (NSW). Unlike traditional refractometers that are typically calibrated for brine (NaCl solutions), the Red Sea Refractometer