LaMotte ColorQ® R-2056 PRO 7 Test Reagent Refill Kit - This LaMotte ColorQ® PRO 7 Test Reagent Refill Kit includes a 30mL bottle of DPD 1A liquid reagent for free chlorine, 30mL bottle of DPD 1B liquid reagent for free chlorine, DPD 3 liquid reagent for total chlorine, CH1 liquid reagent for calcium hardness, CH2 liquid reagent for calcium hardness, pH liquid reagent for pH, CYA test tabs for cyanuric acid and an ALK liquid regent for total alkalinity. A 5 mL color 6 test tube is also included. The ColorQ® eliminates the need to visually determine slight color variations or use look-up tables, thus taking the guesswork out of pool side water analysis.