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Your cart is empty.Freshwater MPS test strips measure the MPS (monopersulfate), alkalinity, and the pH levels in hot tub water. This easy to read product can be used in all Freshwater systems.
Lisa M
Reviewed in the United States on March 3, 2025
Alkalinity and pH readings are not accurate. I also use a liquid test kit and these are way different readings. Makes me question the accuracy of the MPS readings, which is why I purchased these.
Andres F Bella
Reviewed in the United States on July 18, 2023
I’ve used all kinds of test strips and these are the best. The color and accuracy of alkalinity and pH are perfect for when I need to measure accurately. The strips measure MPS but detect chlorine as well. I rely on these test strips to give me the best accuracy. I even use other test strips to check, but always come back to compare with accuracy of these.
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