This kit tests for nitrite using the dropper pipet method. Range/sensitivity is 1 drop = 50 or 100 ppm NaNO₂.

The Insta-TEST^® Low Range Hardness test strips are a convenient way to test hardness levels in water for fast results. Range and sensitivity is 0, 30, 60, 120, 180 ppm.

This kit tests for Sulfite using the Direct Reading Titrator method. Range and sensitivity is 0-100 ppm/2 ppm SO₃^2-.

This Alkalinity Test Kit use titrations with standard acid to the phenolphthalein (P) and/or total (T) alkalinity endpoint. Range and sensitivity is 0-200 ppm/ 4 ppm as CaCO₃.

This kit tests for Total Hardness in water by using the Dropper Bottle Method. All results are as CaCO₃. Range/sensitivity is 1 drop = 10, 25, or 50 ppm CaCO₃.

This kit tests for Sodium Nitrite using the Direct Reading Titrator method. Range/sensitivity is 0-1000 ppm/20 ppm NaNO₂.

The Insta-TEST^® Wide Range pH test strips are a convenient way to test water for pH. Range and sensitivity is 4, 5, 6, 7, 8, 9, 10.

This kit tests for Sulfite using the drop count method. Range and sensitivity is 1 drop = 5 ppm SO₃^2-.

This kit tests for Alkalinity using the dropper bottle method. Range/sensitivity is 1 drop = 10, 25, or 50 ppm as CaCO₃.

This kit tests for Carbon Dioxide where a standard alkali is used to titrate samples to the phenolphthalein endpoint. Range/sensitivity is 0-50 ppm/1.0 ppm CO_2.