Phosphate Test Kit, Low & High Range
Used to analyze level of phosphate levels in your pool & spa, critical for preventing nutrient sources that will trigger algae blooms & spots.
After testing your phosphate levels, if these are too high, shop for a Phosphate Remover, ready and on hand to add to prevent any algae blooms during the season or to steady your pool before close of season/winter.
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.