Made by Insta
These strips are easily recognised by the '5 Plus' logo and the red tube they come with.
50 x Hot tub and Spa water 'Test Strips' for Chlorine or Bromine sanitation testing.
- Free Chlorine or Bromine
- Total Chlorine
- Total Alkalinity
- Total Hardness
These Test Strips can be used with any brand of hot tub chemical to show the correct CL/BR, pH and Alkalinity.