•Total Hardness: 0 - 25 - 50 - 120 - 250 - 425 ppm
•Free Chlorine: 0 - 0.5 - 1 - 3 - 5 - 10 ppm
•Iron: 0 - 5 - 10 - 25 - 50 - 100 - 250 - 500 ppm
•Copper: 0 - 0.5 - 1 - 3 - 10+ ppm
•Lead: 0 - 20 - 50 - 100 - 200 - 500 ppm
•Nitrate: 0 - 10 - 25 - 50 - 100 - 250 - 500 ppm
•Nitrite: 0 - 1 - 5 - 10 - 20 - 40 -80 ppm
•MPS: 0 - 1 - 2 - 6 - 10 - 20 ppm
•Total Chlorine: 0 - 0.5 - 1 - 3 - 5 - 10 ppm
•Fluoride: 0 - 10 - 25 - 50 - 100+ ppm
•Cyanuric Acid: 0 - 10 - 50 - 100 - 250
•Ammonia Chloride: 0 - 100 - 150 - 250 - 500
•Bromine: 0 - 1 - 2 - 6 - 10 - 20
•Total Alkalinity: 0 - 40 - 80 - 120 - 180 - 240 ppm
•Carbonate: 0 - 40 - 80 - 120 - 180 - 240 ppm
•pH: 6 - 6.4 - 6.8 - 7.2 - 7.6 - 8.2 - 9.0