Aquachek - TruTest Test Strips Refill

AquaChek Tru Test Strip Refill Pak of 50. Used exclusively for the Tru Test Reader. You get test results in seconds! To keep your pool at its best, test at each end a minimum of twice a week, and test your spa before each use. Its also a good idea to write down your results each time you test. Comes with complete instructions. 50 strips per bottle.