Reagent set for COPRA Silica+, for 6 month Reagent set for 6 months of operation without sulphuric acid (transport restrictions apply) Specifications Reagent set for COPRA Silica+, for 6 month Contact us to place an order. Downloads Downloads Click Here Related Products Reagent set for COPRA Silica-, for 6 month Calibration solution pH9 200ml Calibration solution pH7 1000ml Redox buffer 475mV, 40ml