Rx Clear® granular chlorine is 99.3% Sodium dichloro-s-triazinetrione dihydrate. Dichlor resists UV light, lasting longer than other types of chlorine. It is pH neutral, saving time and money on corrective chemicals. It is 100% soluble – add directly to skimmer with no calcium residue.
Compare to Pace®, Biogard®, and Sun®. Available chlorine 56%