Easily Floating: The swimming pool chlorine diffuser can float easily on the surface of the swimming pool so that the chlorine is distributed evenly, without worrying about the chlorine levels in your swimming pool. The locking cap keeps the safe chlorine tablets, providing a safer and more enjoyable swimming experience. Adjustable Flow Port: The dispenser is designed with ports on the side to control the amount of chemicals escaping from the dispenser. You can control the cleaning speed level through the ports according to the actual swimming pool situation. Easy to use Just open the cover and slowly add chlorine tablets, and put it into the pool after adjusting the outlet. Wide Usage: This doser with 5 inch diameter works well for in ground pools, massage tubs, spas, above ground pools, ponds etc. Built-in thermometer The built-in thermometer indicates temperatures in F and C. As the dosage of chlorine and other pool cleaning products is highly temperature dependent, the chlorine dispenser has its own thermometer. This pool accessory is suitable for most commercially available steel frame pools or speed pools and many other types of pools. Chlorine Dispenser for Pool, Pond, SPA This chemical dispenser with thermometer not only helps you to dispense metered additives in your pool, but also to control the water temperature. Proper dosing of chemicals into the pool ensures a long shelf life of the pool water, protects the health of your family by allowing them to enjoy the summer. Disinfection and Sterilization With this chlorine dispenser for swimming pools, you can enjoy the summer in the pool water without worrying about the quality of the water. Integrated Thermometer You can reference the temperature measured by the thermometer built into the dispenser to choose the time you play in the pool. Large Capacity With a diameter of 109cm, you can add most chlorine tablets, or other chemicals to clean the pool.