Hot Tub Chemicals provide an alternative to chlorine tabs for higher temperatures that are found in hot tubs and spas. Spaboss chlorine tabs comes with slow dissolve concentration of Trichloro Chlorine tablets that have 90% chlorine availability. Spaboss chlor aid tabs quickly dissolve, and there is bromine added, which controls bacteria. To find out more about the product visit https://www.hottubchemicalscanada.ca/spaboss-spa-tabs-chlor-aid-1.html