Lovibond DPD Number 4 Rapid Tablet, 0 to 1 mg/L, 0 to 2 mg/L, 0 to 4 mg/L

DPD Number 4 Tablet, 0 to 1 mg/L, 0 to 2 mg/L, 0 to 4 mg/L, White, 6.2 pH, Soluble in Water, Chlorine Parameter, Fast Dissolving Tablet, For Use in Our Test Kits, Colorimeters and Spectrophotometers