Complete 1 Inch Chlorinating Tablets (4.5 lb)

BioGuard SilkGuard Complete 1” Chlorinating Tablets, 4.5 lb, Chlorine Tablets for Sanitizing Swimming Pools

U.S. Pool Supply Floating Spa, Hot Tub & Small Pool Chlorine and Bromine Chemical Dispenser - Holds 1" Tablets, 13 Flow Level Control Setting

EASYTEST 7-Way Pool Test Strips, 150 Strips Water Chemical Testing for Hot tub and Spa, Accurate Test Bromine, Total Alkalinity, pH, Free Chlorine, Total Hardness, Cyanuric Acid, and Total Chlorine