High QualityChlorine dispenser is made of high quality PP material, durable, anti-drip, long service life, anti-oxidation, corrosion, you don't have to worry about microorganisms in the water will corrode this thermometer. One package contains 2 pieces of this product to extend your using period. Multi-functionThe built-in thermometer can read the temperature while cleaning the pool.The temperature range that can be monitored is: 30F- 120F / 0C-50C. When the temperature rises or falls, the temperature change can be clearly seen from the outside, and the dual temperature unit display is more convenient. Easy to use just open the dispenser and put in the chlorine tablets. The adjustable dispenser can release an appropriate amount of medication over time as the device floats. It can be used in any water storage equipment such as swimming pools, spas, aquariums, etc. Help you clean the swimming pool, away from algae, bacteria and bad odor. Large CapacityLarge capacity design, with different levels of drug dosage adjustment, and special physical structure that allows it to suspended above the surface of the water to deliver medication evenly. It can clean the pool more efficiently. It can hold 20 to 25 tablets of one inch tablets; it can be reused, While enjoying clean water, you can have more time to experience happiness. Our goal: 100% satisfied customer service. If there is any problem with the product, please contact us immediately and we will provide you with after-sales service to your satisfaction.