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Simply dip this test into water and compare with color chart, easy to use. Test Size: 90 5mm / 3.54 0.19in. Total Chlorine: 0~500. Total Alkalinity

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Kit De Bandelettes De Test Pour Piscine Et Spa 7 En 1, Bandelettes

BESTWAY 3-IN-1 POOL AND SPA LAY Z SPA TEST STRIPS 50 STRIPS FOR