Power 6 Multifunctional 250g Tablets. With a weight of 250g, this tablet is long-lasting and designed to be used in lager pools. Slow-release multifunctional 200g base. Twin-phase chlorine release. The quick release shock top ensures that the chlorine is quickly dispersed through out the pool, providing rapid results, coupled with a slow-release base for consistent disinfection.
eBay