P32002DE Features: -PH minus. -Ingredients: 100 % Sodium bisulfate. -Spa and hot tub capacity gallons - based on 500 gallons. -Your pH test reading is: 7.6-8.0 add 1/2 oz., 8.0-8.4 add 3/4 oz. and above 8.4 add 1 1/4 oz. Chemical Type: -PH Adjustment.
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