Water Free Chlorine Check Ultra High II 0-2000ppm

Price:£16.99£14.99Save: 12% off
5 out of 5 stars Tuesday 25 August, 2015 By B. Scholten
Its hard to tell exactly which one goes to what level. We had to get to a minimum of 500 ppm. We purchased the Ultra High strips as well 0-750 and want these 0-2000 as a confirmation that we had hit our minimum. We were testing at 8-10 locations over the period of an hour, comes with 50 strips, worked great. This range is way outside our equipment's capability to measure chlorine.