Nitrite (Nitriphot) Reagent (Photometer) Home Products Nitrite (Nitriphot) Reagent (Photometer) Nitrite (Nitriphot) Reagent (Photometer) Pack Size: Add to Enquiry DESCRIPTION Test for Nitrite in cooling water. Range: 0 – 1500 mg/L NaNO2 Product Code: AP260 APPLICATION Coming Soon