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Digital Tru Reader Refill Pack
Test for: Free Chlorine/Bromine, pH, and Alkalinity. For use with the AquaChek TruTest Digital Test Strip Reader. Bottles have a convenient flip top cap for easy dispensing! Just dip a test strip in your pool or spa, insert the strip into the meter and get fast accurate results! To keep your pool at its best, test at each end a minimum of twice a week.