The Mainstays Small Pool & Spa Bromine/Chlorine Dispenser is extremely durable yet light weight. It has a holding capacity of up to 12 (20 g) tablets (not included). There is an easy chemical flow adjustment, and the water line on the dispenser indicates how many tablets are left for worry free balanced delivery. The dispenser comes with a retaining cord to prevent it from floating away. It is perfect for various swimming pools and spas and designed to be discrete. The necessary item will keep your pool or spa ready to use and free from contaminants.