XtremepowerUS 5-Way Swimming Pool Test Kit pH, Chlorine, Bromine, Alkalinity Chemistry Testing with Case

XtremepowerUS 5-Way Swimming Pool Test Kit pH, Chlorine, Bromine, Alkalinity Chemistry Testing with Case Spa, Inground Above Ground Pool Residential

EASYTEST 9-Way Pool Test Strips, 140 Strips for Hot tub and Spa, Accurate Testing pH, Total Chlorine, Free Chlorine, Bromine, Alkalinity, Total Hardness, Cyanuric Acid, Salt and Copper

Clorox® Pool&Spa™ Swimming Pool Algaecide and Clarifier, Prevents and Treats Pool Algae, Clears Water, 128 Fl Oz (Pack of 1)