SplashTech Mini Floating Chlorine Dispenser for 1-inch Tablets Safely and conveniently diffuses 1-inch chemical tablets into your pool water Mini size is ideal for 1,000-gallon pools or spas of any size. Larger pool? Try our Large dispenser! Play-proof! Locking lid keeps the chemical tablets securely inside, so splash all you like No care required. Just fill with your choice of chemical and let it float while you enjoy your pool Choose the best size for your pool. Our mini diffuser is 5.25" tall with a 5" diameter