BioGuard Stabilizer 100 (5 Lb.)
BioGuard Stabilizer 100 is a granular, totally soluble product that prevents free chlorine residual loss due to sunlight. Without Stabilizer 100, chlorine quickly dissipates and consumption increases. This product is formulated to reduce maintenance costs and chlorine consumption. It is intended only for outdoor, chlorinated pools. The key ingredient of this product is cyanuric acid.