Spa pools with a water surface of 5m² or less, do … [Read More...]
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Phenol Red Solution Reagent No. 2 (30mL)$5.90
No. 2 solution of phenol red used to test pH in larger test vials such as in the 6-in-1 test kit. BioLab Water Testing is a complete water testing range for pools and spas, which provides fast and accurate water analysis.