BioGuard Chlorine Stabilizer 100 - 5 lb spa frog Removes relatively fresh metal stains:

Removes relatively fresh metal stains: Some existing stains may be reduced by brushing after application

The Flippin’ FROG system combines sanitizing minerals with chlorine to help maintain clean

reducing contaminants

What hot tub size is FROG Serene designed for

SmartChlor technology: Self-regulates to help maintain a consistent low chlorine level

BioGuard Chlorine Stabilizer 100 - 5 lb spa frog Removes relatively fresh metal stains:BioGuard Stabilizer 100 5 lb Long Lasting Chlorine Protection for Outdoor Pools BioGuard Stabilizer 100 is a granular chlorine stabilizer designed to help protect free chlorine from sunlight loss in outdoor swimming pools. By helping maintain the proper stabilizer level, it allows chlorine to stay active longer, which can reduce sanitizer waste and support clearer, more consistent pool water. This 5 lb bottle is a strong choice for pool owners who