Pool Mate1-2501SPA Metal Gone for Spas and Hot Tubs (1 Pack), 1 Pint

Pool Mate 1-Pint Metal Gone for Hot Tubs, Prevents Metal Staining, Made in USA

Leisure Time E5 Spa 56 Chlorinating Granules for Spas and Hot Tubs - Maintains Clean, Clear, Sanitized Water, 5 lbs

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