LaMotte
LaMotte Insta-Test 4 Plus, Free Chlorine, Bromine, Alkalinity, pH, Total Hardness Testing
SHATCHI
25 Dip 3-in-1 Test Strips Blue Sparkle for Ground Pool Spa and Hot Tubs Treatment to Measures PH, Alkaline and Chlorine
AquaChek
AquaChek Ocedis 411810001 Salinity Test - 10 Strips, Red, 19 x 10 x 4 cm
A Little Life
5 in1 Water Chlorine Test Kit, (20 Strips), Swimming Pool and Spa Testing Strip, Easy Test for Chlorine, pH, Total Alkalinity, Cyanuric Acid, Total Hardness