Photo 1 of ***2 pack****AquaChek Red 4-Way Spa Test Strips - 50 Bromine Test Strips - Hot Tub Water Test Strips for pH, Bromine, Total Alkalinity, and Total Hardness - Made in The USA

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Photo 1 of ***2 pack****AquaChek Red 4-Way Spa Test Strips - 50 Bromine Test Strips - Hot Tub Water Test Strips for pH, Bromine, Total Alkalinity, and Total Hardness - Made in The USA