QuickShipQuickShip 50/100pcs 7-In-1 100 Strips Water Quality Test Strips, Multi-Function Swimming Pool And Spa Test Strips, Hot Tub Test Strips, Accurately Measure PH, Hardness, Total Chlorine, Total Alkalinity, Cyanuric Acid And Bromine, Convenient For Monitoring Pool Water Quality, Suitable For Garden Pool Cleaning, Hot Tubs And Spas. 
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