Tinuvin 1130, Tinuvin 292
4-Way Test Strips (Total Bromine, Free Chlorine, pH & Total Alkalinity)
£7.29 + VAT (£8.75 inc VAT)
DIRECTIONS: Dip the strip into the water and remove immediately. Hold strip level for 15 seconds (do not shake excess water from the strip). Compare either Total Bromine or Free Chlorine, pH and Total Alkalinity pads (in that order) to colour chart on label. NOTE: Low pH readings may result when Total Alkalinity is less than 80 ppm.