Description
- Easy to Test: Free Chlorine/bromine, Ph, Total Alkalinity.
- Easy to Distinguish: the Color Difference is Obvious, and It is Easy to Compare the Color of the Strip with the Color Table.
- Test on Both Ends of the Pool Twice a Week for Best Results.
- Immerse in Water for Instant Reading and Put in a Container That is Easy to Store.
- Perfect Spa Test.