3" Chlorine Bromine Tablet Tabs Dispenser/Floater for Swimming Pool Spa Description : Floating 1" or 3" Chlorine Tablet Flaoter/Dispenser for Swimming Pool, Spa. 7" in diameter X 7" in height For use with 3" or 1" chlorine or bromine tablets and sticks. Great for holding and dispensing large 3" chlorine or bromine tablets. Features adjustable bottom vents for proper chemical dispensing. Easy to remove twist lock lid.