Hanna Deionized Water Calcium Additive giving it a bold new

giving it a bold new appearance

Available in 3 sizes 5

A textured surface helps speed the spread of coralline algae and give each hub a more natural look in your aquarium

Dual 2-micron Chloramine Blaster Removal Filters

Hanna Deionized Water Calcium Additive giving it a bold newThe biggest complaint about the Hanna Calcium Checker is that the test results are not accurate. 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. This Ultra Pure deionized water that keeps your titration tests accurate is also good for any other type of test that requires dilution of the sample before titration.