Hach total water hardness test strips, range 0-425 mg/L as CaCO3, 50 strips per bottle. Dip-and-read colour-block comparison against the chart printed on the bottle.
| Part | 2745250 |
| Method | dip-and-read colour-comparison strip |
| Range | 0-425 mg/L CaCO3 (total hardness) |
| Reading | compare to colour blocks on the bottle |
| Pack | 50 strips |
| Shelf life | 12-24 months unopened |
| Storage | 15-25°C, dark |
| MOQ | 1 |