Lamotte ColorQ 2X Home Pool 7 Test Kit 2084

Free Chlorine (DPD) range: 0-10 ppm Total Chlorine (DPD) range: 0-10 ppm Bromine (DPD): 0-22 ppm pH range: 6.5-8.5 Total acidity range: 0-250 ppmYou may also like Water Quality Testing Kit, Caustic CA3.