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 keeps each tablet in perfect condition, right up until the time it is needed by the user. - Total Chlorine (DPD 3 High Range) tablets for use in Lovibond photometers. - 100 Tablet Box: 38mm x 38mm x 99mm - Lovibond 511590BT