Premium Salinity Refractometer Ball Valve This pH tester offers automatic

This pH tester offers automatic calibration to one or two points

high density

22’ x 6’

The Sparus™ pump is self-priming and it’s also suitable for flooded-suction applications

This specialize bacteria will start working in cold water (0oC to 15oC)when more traditional bacteria is still dormant

Premium Salinity Refractometer Ball Valve This pH tester offers automaticLargest and sharpest scale display available. Calibration ring for simplified calibration. This refractometer features a magnified scale for better visual accuracy. Other features include solid aluminum construction, a rubber gripped body and temperature compensation between 10 and 30C (50 to 86F). To calibrate, simply loosen the handset screw, place a few drops of water on the prism, turn the calibration ring until the shadow line is at zero and