Designed to hold 1" and 3" chlorine tablets, the Ocean Blue160010 Large Floating Chemical Dispenser easily regulates itself to fit your pool's chemical requirements. The automatic chlorine feeder evenly distributes chlorine into your pool water without damaging your pool filter equipment. The Ocean Blue pool chemical dispenser also includes an adjustable ring on its bottom end to regulate the amount of chemicals it dispenses into your swimming pool. The chemical dispenser is designed to hold both chlorine and bromine and features foam-filled, chemical resistant plastic that provides extra buoyancy. Its durable design means it's built to withstand the harsh effects of all four seasons. Features: Chemical dispenser Self-regulating with adjustable ring Holds 1-inch and 3-inch chlorine tablets