Synthetic Fresh Water, Hard 415 ppm TDS as Fresh Water Ions, 160 - 180 mg/L Hardness as CaCO? - 8664-32Size:1 L Poly naturalCAS Number:7732-18-5,144-55-8,7487-88-9,10101-41-4,7447-40-7
Synthetic Fresh Water, Hard 415 ppm TDS as Fresh Water Ions, 160 - 180 mg/L Hardness as CaCO? - 8664-1Size:4 L Poly naturalCAS Number:7732-18-5,144-55-8,7487-88-9,10101-41-4,7447-40-7
Synthetic Fresh Water, Very Hard 830 ppm TDS as Fresh Water Ions, 280 - 320 mg/L Hardness as CaCO? - 8665-1Size:4 L Poly naturalCAS Number:7732-18-5,144-55-8,7487-88-9,10101-41-4,7447-40-7