- Suitable for all freshwater and marine aquariums
- Liquid test for water parameters
- Tests the permanent hardness in the water
- Excellent long-term stability
- With the Tetra Aquatics app you can determine water values quickly, reliably and easily using your smartphone
What you need to know:
- 1 x Tetra Test pH Permanent Hardness
- Please Note: We recommend that you consult the packaging instructions prior to use of this product