Quick view Cannon Water Technology Inc. Free Chlorine Test Kit, Low Range, 1 drop = 0.2PPM or 0.5PPM, FAS-DPD Method MSRP: FRw118812 FAS-DPD Method, Free Chlorine Test Kit, Low Range, 0.2 PPM or 0.5 PPM Per Drop, 25 ML Sample This easy to use titration test kit is used to measure the residual free chlorine available in the water... MSRP: FRw118812 Add to Cart The item has been added Add to Wish list