Taylor FAS-DPD Powder Reagent - 10 Grams
Taylor formulates its reagents to remain effective for at least one year, with only very few exceptions (molybdenum indicator in liquid form is one; after four months old it should be tested against a standard periodically). As a general precaution, replace all reagents more than one year old, or at the beginning of a new testing season.
Features and Benefits
When added to water, will turn sample to pink if free chlorine is present
Taylor R-0870-I
