BIOGUARD BURNOUT 73 5LB POOL SHOCK 47 Filter-friendly boost

Filter-friendly boost

Prevents Channeling – Helps avoid uneven water flow inside your filter

and stubborn stains from pool tiles and vinyl surfaces

and spa shells

Just broadcast over the surface or add via skimmer (for plastic piping)

BIOGUARD BURNOUT 73 5LB POOL SHOCK 47 Filter-friendly boostBioGuard Burnout 73 Pool Shock 5 lb Powerful chlorine shock for fast, effective pool water cleanup. BioGuard Burnout 73 is a premium calcium hypochlorite pool shock designed to quickly eliminate contaminants, restore water clarity, and keep your pool safe for swimmers. With 73% available chlorine, this fast dissolving shock treatment is ideal for routine maintenance or clearing up cloudy and algae prone water. Why Choose Burnout 73? 73% Available