Amazon.com : Spa Essentials 32362000-02 Concentrate Granules Hot Tube Bromine, 2-Pack, White : Patio, Lawn & Garden
Amazon.com : SpaChoice 472-3-5021 Sodium Bromide Bromine Booster for Hot Tubs and Spas, 1-Pound, 1-Pack : Patio, Lawn & Garden
Amazon.com : Spa Essentials 32362000 Brominating Concentrate Granules for Spas and Hot Tubs, 2-Pound , White : Pool Chemicals & Water Testing Products : Patio, Lawn & Garden
Leisure Time 1.75 Lb. Brominating Granular for Swimming Pools - Walmart.com