BioGuard Basic Shock 5 lb frog @ease If metals are present

If metals are present

Use it after filling or refilling your hot tub

these tabs may lower total alkalinity along with pH

Q: Can I use this with other Pool FROG systems

Typical 3 to 4 week cartridge life: Actual replacement timing varies by spa conditions and usage

BioGuard Basic Shock 5 lb frog @ease If metals are presentBioGuard Basic Shock Quick Dissolving Granular Pool Shock 5 lb Fast Dissolving Chlorine Pool Shock for Clear, Healthy Water BioGuard Basic Shock is a quick dissolving granular chlorine pool shock made for pool owners who want straightforward, effective water treatment without unnecessary additives. This 5 lb size gives you a larger supply for routine shocking, algae treatment support, and water clarity maintenance throughout the swim season. Designed