Just dip an Instra Test 5 strip in your Hot tub or pool for one second and remove it immediately. You get test results in seconds. It couldn't be easier! To keep your hot tub at its best, test before each use. It's also a good idea to write down your results each time you test, so you can track changes.
Test For:
- Free Chlorine
- Bromine
- Total Chlorine
- pH
- Total Alkalinity
- Total Hardness
50 strips per bottle
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