Just dip an AquaChek Select 7-in-1 pool test strip in your pool or spa water for one second and remove it immediately. You get swimming pool water testing results in seconds!The Select Test Strip Kit includes a 24-page Pool and Spa Care and Treatment Guide with test log, 50 pool water testing strips and a reusable plastic color comparator.The Select Refill Test Strip Kit contains a refill bottle of 50 test strips, plus a new insert for the reusable color comparator. You’ll find this an economical way to test both pool and spa water.To keep your pool at its best, test at each end a minimum of twice a week, and test your spa before each use. It’s also a good idea to write down your results each time you test. AquaChek Select 7-in-1 Test Strips test forCyanuric Acid (Stabilizer)Free ChlorinepHAlkalinityBromineTotal ChlorineHardness
