The kit tests for both temporary and total hardness.

This instrument measures the salinity & specific gravity of seawater aquariums.

For use in all fresh water aquariums    

For use in all fresh water and marine aquariums    

For use in all fresh Water Aquariums and Marine aquariums    

For use in all fresh water aquariums    

Highly accurate liquid test kit  

 Highly accurate liquid test kit.  

Help distinguish between safe chelated iron, and toxic non-chelated iron.