Pristine Extra Chlorine Shock 4 lb container with Macke Pool Product Guide

You can choose to add Pristine Extra or Pristine Power (non-chlorine shock) to shock your Pristine Blue water. Pristine Extra (99% Sodium Di-Chlor which is granular chlorine) is an effective chlorine shock treatment used to startup and for troubleshooting if necessary. It can also be used for routine maintenance. Pristine Extra dissipates rapidly, which returns your water back to a non-chlorine status.