Photo 1 of Digital Water Testing Kit - Digital Hot Tub Water Tester for Pool - Digital Chlorine Tester for Pool by AquaDoc with Water Analyzer and Test Strips

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Photo 1 of Digital Water Testing Kit - Digital Hot Tub Water Tester for Pool - Digital Chlorine Tester for Pool by AquaDoc with Water Analyzer and Test StripsPhoto 2 of Digital Water Testing Kit - Digital Hot Tub Water Tester for Pool - Digital Chlorine Tester for Pool by AquaDoc with Water Analyzer and Test Strips