Add to Cart Quick view Bio-Active Cyanuric Acid Reducer 8 Ounce Package Bio Active Products MSRP: Now: $60.00 Was: Bio-Active is an all-natural and ultra-powerful solution to reducing high levels of cyanuric acid (stabilizer) levels in swimming pools. Cyanuric acid build-up comes from over chlorinating with... MSRP: Now: $60.00 Was: Add to Cart Quick view