Lovibond DPD 3 HR Test Tablets For Use With (Equipment) - SC450 chlorine 2 and 3 colorimeters, MC500 colorimeter, SP600 spectrophotometer, AquaPRO3 and PRO6 Pool photometers. Lovibond Photometer Reagents Total Chlorine (DPD3 High Range) 100 Tablets - Lovibond Total Chlorine High Range (DPD 3 HR) Box of 100 Tablets - High Range 0 - 10 mg/l Chlorine - For more than thirty years, Tintometer in Dortmund has been manufacturing reagents for water testing and marketing these reagents around the world under the brand name Lovibond. - Lovibond test tablets are manufactured in Germany under tightly controlled conditions on the latest machinery. Maintaining the highest quality standards permits Tintometer GmbH to guarantee reagent tablets for a minimum of 5 years, and some for as long as 10 years. - Lovibond can make this promise because each tablet is hermetically sealed within an individual aluminium foil pocket, protecting against challenging environmental conditions. This packaging kee