The Labsales Story. Labsales Presents Our Professional Test Kits. Kit 3| 5 in 1 Test Kit for the Testing of pH, Chlorine, Bromine, Alkalinity and Hardness. Colour Comparator, 20 Professional pH Tests, 20 Professional Chlorine/Bromine Tests, 10 Professional Alkalinity Tests, 10 Professional Hardness Tests, Instruction booklet.
eBay