To maintain proper water chemistry, testing for five basic chemicals is a must. The 5-way test kit tests for chlorine, bromine, ph, acid demand, and total alkalinity. Each test ensures that your pool and spa water is safe not only for swimmers, but for the longevity of your pool's finish and equipment. The kit includes a round clear-view test block with five integrated color chip readouts that are easy to use for matching. Chlorine and ph indicators are located on the front of the test block, with the bromine readout located on the back. A complete set of indicator solutions is included with 1 oz. Solutions of #1- #3 and 1/2 oz. Solutions of #4 - #5. A quick-guide for testing is included along with a complete comprehensive instruction guide filled with easy to follow procedures and added tips for regular maintenance.