£76.32 Calico - H Calcium Hardness - Photometer 517762BT quantity Add to basket Categories: Commercial Products, Lovibond, Water Testing Additional information Additional information Weight 1 kg Related products Sodium Hypochlorite Hanging Label £6.00 Add to basket Sodium Bisulphate Hanging Label £6.00 Add to basket Pool Tester – Chlorine-pH – 151601 £19.47 Add to basket Sodium Hypochlorite Label £6.00 Add to basket