PoolCheck® 4+ is the only complete source for pool & spa testing that you will ever need. Test only takes 20 seconds and you get 4 most important readings of your pool or spa along with a guideline OK or NOT OK. 

Tests for:
- Free Chlorine 0, 0.5, 1, 3, 5, 10 ppm (Bromine 0, 1, 2, 6, 10, 20 ppm)
- pH 6.0, 6.8, 7.2, 7.6, 8.2, 9.0
- Total Alkalinity 0, 40, 80, 120, 180, 240 ppm
- Cyanuric Acid 0, 30-50, 100, 150, 300 ppm

Features:
- No instrument required
- No liquids, tablets or powders to handle
- 4 results in 20 seconds
- More colour blocks result in better accuracy and precision
- Our pH indicator (BTB) provides easy colour matching for improved accuracy
- Our TMB indicator for Free Chlorine is more accurate and uses the same patented indicator as our USEPA approved test strip for drinking water
- 5 second dip time with motion allows lower detection levels and even colour development (forget 'spots' or 'bleeding')

Contains 50 tests.

Made in USA