Pool Check Pro for Free Chlorine marks a breakthrough in pool & spa water testing. Designed using our EPA-pending free chlorine test strip, Pool Check Pro for Free Chlorine offers acurate, reliable results everytime. Utilizing our unique dual-pad indicator system, Pool Check Pro for Free Chlorine is sure to make quick work out of routine maintenance.

Free Chlorine: 0, 0.1, 0.2, 0.3, 0.5, 0.7, 1, 2, 3, 4, 5, 6, 10, 15, 20 ppm

Packaging: bottle of 50 test strips