SUDS-ONLINE 3 in 1 test strips for swimming pools, spas and hot tubs.
These test strips test the levels of Free Chlorine, pH & Total Alkalinity to keep you and your family safe.
Dip a strip into water and remove immediately.
Hold strip level for 15 seconds (do not shake excess water from strip).
Compare Free Chlorine, pH and Total Alkalinity pads (in that order) to colour chart on label.