Deionized Water HI70436M testing The sleek look of the

The sleek look of the mounting arm is enhanced by the silicone sleeve over the flexible portion of the mounting arm

The app includes pre-set lighting programs

5 feet of tube

They are REEF SAFE

The Apex from Neptune Systems is a modular systems that allow you to connect many modules together

Deionized Water HI70436M testing The sleek look of thePerfect for the Hanna Calcium Checker! Ultra Pure deionized water that keeps your titration tests accurate and repeatable. The biggest complaint about the Hanna Calcium Checker is when the sample is diluted, if the fresh water source is not pure, it can cause irregular readings and using Hanna's Deionized Water will help prevent that from happening. The water is good for any other type of test that requires dilution of the sample before titration.