This floating chemical dispenser is constructed of high impact polypropylene plastic, for durability and years of trouble-free service. The tropical floating chemical dispenser is fully adjustable and will dispense tri-chlor chlorine tablets or bromine tablets up to 1-3/8-inch diameter. The adjustable rate control is enhanced by the vented full-flow design. The E-Z refill access cap allows the reloading of tablets or without affecting the rate setting. Great for easy, trouble-free chemical maintenance of spa or hot tub. Available in blue color. Measures 1-inch in size.