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Compatible with the ColorQ 2x test kits, these calcium hardness tablets feature a measuring range of 0 to 600 ppm and come in a pack of 100.
Compatible with the ColorQ 2x test kits, these calcium hardness tablets feature a measuring range of 0 to 600 ppm and come in a pack of 100.
| Range | 0 to 600 ppm |
| Quantity | 100 |
