The Octo Water Hardness test kit, is accurate and simple to use, it uses one single reagent, and has two bottles supplied with the kit, this kit can be used to set the octo Compact water softener, or test any other make of softener.

These Test-Kits are also suitable for testing boiler, cooling and industrial process water. They make use of both colorimetric and titrimetric techniques.

The kits are supplied in a sturdy, compact plastic case