The Intex Floating Chemical Dispenser is an effective way to sanitize your pool. Use it in any Intex pool up to 12' and Intex PureSpa. This dispenser holds up to 1" chlorine or bromine tablets (not included), and you have control over the amount of chemical released. Just use the control ring to adjust the release of chlorine or bromine. The polypropylene material is durable and non-corrosive. Keep your pool sanitized with little upkeep.