Renew is a non-chlorine shock treatment. This fast-dissolving granular rids spa water of residual soaps deodorants natural oils and organic materials that can build up in spa water. Features: When Renew is added to the spa water it reacts with the bromide and forms a bromine solution to destroy any microorganisms left behind by the bather. Quickly dissolves in water to rid spa water of oils and residue..
