Quality Taylor brand test kit reagents, for your Taylor liquid solution pool water test kit.
Note: All reagents have a shelf life, whether they are liquids, powders, crystals, tablets, or test-strip pads. As with all perishables, reagents are sensitive to environmental influences and will last longer under controlled conditions. As a general precaution, replace all reagents more than one year old, or at the beginning of a new testing season.