Dellonda DL51 1kg Chlorine Mini Tabs for Hot Tubs, Spas & Swimming Pools Designed to control and monitor chlorine levels. Use to disinfect water in hot tubs, spas and swimming pools. These 20g tablets dissolve slowly over a period of time for a steady flow of chlorine in to the water and specifically formulated for the disinfection of Spa, Hot Tub Water and Swimming pools. These tablets are best used in a floating dispenser. DL51 Features: Designed to control and monitor chlorine levels. Use to disinfect water in hot tubs, spas and swimming pools. Each 20g tablet dissolve slowly over a period of time for a steady flow of chlorine in to the water and specifically formulated for the disinfection of Spa, Hot Tub Water and Swimming pools. These 20g tablets are best used in a floating dispenser. Model No. DL51 DL51 Specification: Model No:DL51 Brand:Dellonda Nett Weight:1kg What is included: 1x Dellonda DL51 1kg Chlorine Mini Tabs for Hot Tubs, Spas & Swimming Pools