Bestway Flow Clear - Swimming Pool And Spa Test Strips

_x000D_ Best way - Flow clear Pool and Spa Test Strips _x000D_ The ideal solution for basic pool and spa water testing _x000D_ 3-in-1 Test Strip _x000D_ Easy Color-Match System _x000D_ Measures Free Chlorine 0 to 10 ppm, Alkalinity 0 to 240 ppm and pH 6.2 to 8.4 with instant results _x000D_