Description
Taylor R-0004-C-12 pH Indicator Solution for 2000 Series Phenol Red 2 oz Dropper Bottle. 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
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