Easy to use 4 way Insta Test-strips for Free Chlorine, Bromine, Alkalinity and pH. Total Hardness with an easy to read comparison chart.
These test strips also come with a 6 step guide on how to use them:
- Make sure to keep all wet fingers out of the bottle
- Make sure to close the cap tightly when you have removed a strip
- Turn the jets off and immerse the strips to a depth of 6"
- Store in a cool dry place in order to receive the results