This combination test kit provides tests for Hardness, Iron, and pH. Drop count tests for Hardness (10 ppm or 1 gpg/drop). Octa-Slide tests for Iron (0.5-10 ppm) and pH (5.0-10). Includes 100 tests for Iron and 50 tests for each pH and Hardness.
4783-03, ColorQ DW Water Test Kit