3-Way Test Kit with Polyethylene Case makes testing Chlorine, Bromine and pH levels easy. First use the color-coded vials to take samples of your pool water. Compare your results to the easy-to-identify color-coded test blocks. Customers prefer this product because it comes with a sturdy polyethylene case and easy-to-read instructions.
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Pool Chlor –
This is the best test block. Don’t stop making them.