10kg Multifunctional Chlorine Tablets for Swimming Pools - 200g - Large - 3"

2 x 5kg Tubs (10kg Total). Multifunctional Chlorine Tablets. This can be done using a liquid chlorine, shock chlorine granules, non chlorine shock granules or a liquid algaecide. With standard stabilised chlorine granules a dose of up to 5x the normal amount (max 10ppm) can be used to clear algae infested water too.

eBay