- Function and compatibility: Suitable for 1.5 inch chlorine tablets. Ideal for using tablets to keep your pool, spa or hot tub clean. - Material: Made of high quality ABS material, sturdy and durable. This dispenser is suitable for floor pools, massage baths, hot tubs, above-ground pools and spas. - Design and performance: Adjustable control ring provides a uniform release of chlorine, helping maintain consistent chlorine levels in your pool or spa. - Application and features: Built-in thermometer shows temperatures in both Fahrenheit and Celsius. The lid rotates and locks securely. - Use scenario 1: In a residential floor pool or spa, use 1.5 inch tablets to maintain clean water with steady chlorine release. - Use scenario 2: In a hot tub or massage bath, ensure continuous dosing for reliable sanitization. - Use scenario 3: In above-ground pools and spas, benefit from the thermometer reading and secure locking lid for safe operation.