Our Brominating Tablets provide excellent sanitizing for spas and hot tubs without nearly the odor of chlorine. Our premium 1" slow-dissolving bromine tabs are very economical and of unsurpassed potency. Use in Adjustable Floating Feeder. These tablets are of the highest quality and strength.Compare our 98% Active Ingredient to any other brand! You cannot buy better quality bromine tablets at any price.Product notes: Active ingredient: Bromochloro-5, 5-dimethylhydantoin 98%. Guaranteed fresh.