Sapphire Waves 5 in 1 Multifunction Chlorine Tablets for Hot Tubs, Spa, Swimming Pools. 1Kg Tub 50 x 20g 1" Spas Paddling Pool Hot Tub Chlorine Tablets for use in Chemicals Floating Dispenser. Simply put desired amount of tablets into dispenser, monitor the chlorine levels until a constant level has been achieved.
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