- Analyzes three chemical factors: Chlorine, Bromine and pH; comes with case
- Round, clear-view test block with matching color caps to 1/2-ounce solutions of OTO and Phenol Red
- OTO tests for chlorine levels and Phenol Red tests for pH
- Round, clear-view test block with matching color caps to 1/2-ounce solutions of OTO and Phenol Red
- (Note: phenol red is not the same as solution #2 phenol red - DO NOT interchange)
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