AquaChek MPS 3-way Test Strips for hot tubs & pools checks monopersulfate (OxySpa) + Alkalinity & pH. Use with alternative sanitizers like Nature2, Frog, SpaRx. 50 tests.
- Non-chlorine Shock (MPS)
- Total Alkalinity (TA)
- pH
Product notes: Dip strip, remove, then compare to color chart.
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