This is a Pentair Rainbow #PRO-11 Professional Mini Test Lab that tests for Free, Total and Combined Chlorine, Bromine, Iodine, and Cyanuric Acid using tablets, and pH, Acid Demand, Total Alkalinity, and Water Hardness using liquid reagents. This kit uses both drop test and DPD tablets with a color comparator. Pro-Design Test Cell features CI range to 10 ppm and meets recommended industry standards. It includes a water test booklet, instructions and is housed in a sturdy red display box. The Pro-11 is a complete test lab designed for service professionals.
Testing sanitation levels and pH are the most important tests for pools. The chlorine level should stay between 1.0 and 3.0 parts per million (ppm) to maintain a healthy pool. A pool's pH levels should be maintained between 7.2 and 7.6.