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4in1 Pool Check is a complete source for pool & spa testing. Measuring for 4 of the most important pool & spa parameters, 4in1 Pool Check is ideally suited for the demanding pool & spa owner who is concerned with proper pool & spa maintenance.
- Free Chlorine/Bromine: 0, 0.5/1, 1/2, 3/6, 5/10, 10/20 ppm
- Total Chlorine/Total Bromine: 0, 0.5, 1, 3, 5, 10 ppm
- Total Alkalinity: 0, 40, 80, 120, 180, 240 ppm
- pH: 6.4, 6.8, 7.2, 7.6, 8.2, 9.0
- Packaging: bottle of 50 test strips
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