This Professional / Dealer type kit contains the necessary materials to conduct multiple tests of the hardness ( in grains per gallon ) of the water.
AND 50 test of IRON Levels ( up 10 ppm ) and multiple pH tests ( range 4.0 - 9.0 ).

Field Analysis Kit (Iron, Hardness, pH)

Includes:
Hardness (1oz). #1,#2,#3, hardness test bottle,
measuring tube,
iron reagent foil pack, 5ml, 50pk.,
pH wide range indicator (1oz.), pH range 4.0 - 9.0,
and iron test stand range 0.5 - 10 ppm,
and step by step directions.

Can be used to test hardness level as high as 100 grains per gallon ( gpg ).

Hardness test includes 3 different chemicals used to accurately determine the hardness of water in Grains Per Gallon ( gpg ).

This is the method that professional water treatment dealers use in the field.