Hanna Instruments Kit de Rechargement d'Alcalinité HI755-26

Very good stuff ,fast delivery ,thanks

good product and

Great checker, makes testing alk super easy so its easy to keep testing it regularly!

Hanna is the test I use for Alkalinity, its easy and fast - I get consistent results with the refill kit time after time All other tests I use Sailfert

The best way to track dkh