LaMotte ColorQ pH Red Indicator, 60 mL, 7037-H

This is the LaMotte pH Red indicator, part 7037-H, in a 60 mL bottle. It is the pH reagent used with the ColorQ test kit.

Why reagents get replaced

Test reagents are consumables with a working life. Heat, sunlight and time all weaken them, and a weak indicator does not fail cleanly, it drifts. If your pH readings have started disagreeing with a strip or with a pool store sample, an aging indicator bottle is the usual reason and the cheapest one to rule out.

One reagent, not a kit

This bottle covers the pH test only. Chlorine, alkalinity, hardness and the other ColorQ channels use their own reagents, so restock whichever ones you have run down.