This multi-test kit combines popular water treatment tests into one compact kit which can be used to determine chlorine (0 to 3,4 mg/L), hardness (1 to 20 gpg), iron (0 to 4 mg/L) and pH (4 to 10) in the water sample.

• Includes frequently measured water quality parameters
• Uses simple, economical methods

Hardeness testing: gpg= grains per gallon