4 in 1 Test Kit Professional Pool & Spa Water Test Kit Chlorine/Bromine PH TA 93206000307974 in 1 Aussie Gold Pool & Spa Test Kit Chlorine Bromine, PH, acid demand, TA A test kit is one of the most important tools for the proper care of your pool or spa. It will aid you in maintaining the hygienic conditions of the water, and help prevent water problems which can damage pool or spa related equipment. This 4in1 Test kit gives you the ability to test for the four most common parameters used to keep your pool or spa water in a good condition.