🏊[ Application ] Suitable for drinking water, aquariums, swimming pools and spa, sewage and other liquids. It can also be used to test hot tub water, it will work normally. 🏊[ 6 IN 1 Test Strip ] The ph test strip is newly upgraded, with 6 in 1, which can simultaneously test six kinds of PH, total chlorine, free chlorine, total alkalinity, cyanuric acid, and total hardness.
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