Relax Phenol Red Tablets View larger

Relax Phenol Red Tablets

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Rapid dissolving Phenol Red tablets. These are used along with a test kit to check the pH level of your swimming pool or hot tub water. 100 per pack.



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Rapid dissolving Phenol Red tablets. These are used along with a test kit to check the pH level of your swimming pool or hot tub water. 100 per pack.