BioGuard POOL TONIC (1 Quart)
The first offense in restoring a healthy sparkle to sick pools that are cloudy, hazy or just plain dull. The dual action proprietary formula attacks phosphates and other common contaminants that create pool problems so they become easy to filter out. One bottle removes up to 1,000 PPB of phosphate per 20,000 gallons. A great add on for saltwater pools.