Unstabilized chlorine shock. Quick dissolving and fast-acting chlorine that can be used to kill algae blooms and/or for regular maintenance to give your pool water a jolt of concentrated sanitizer. Broadcast mainly in the deep end at the rate of 65g per10,000L. One pouch is sufficient to shock most residential pools. 

Unstabilized Granular Chlorine Shock - 454g

C$5.99Price