Powerful Sanitizing Strength: Formulated with 12.5 percent sodium hypochlorite, this commercial-grade liquid chlorine delivers fast, effective shock treatment to sanitize swimming pools Crystal-Clear Water: Residue-free formula prevents cloudiness or staining, keeping your swimming pool water sparkling clean and inviting without the fuss of granular alternatives Effortless Application: Ready-to-use liquid solution requires no mixing or pre-dissolving, simply pour directly into your pool so you can enjoy a refreshing swim faster than ever Cost-Effective Maintenance: Highly concentrated liquid chlorine reduces the amount needed per treatment, offering an economical sanitizer for regular pool care and shocking routines Versatile Cleaner: Use for weekly maintenance, seasonal openings, or addressing problem water conditions, this unscented pool shock works for both residential and commercial pools Keep your pool water clear, safe, and swim-ready with Champion Pool Shock 12.5-percent Liquid Chlorinator. This 4-pack of 1-gallon bottles restores water clarity, reduces cloudiness, and keeps your pool looking fresh and inviting while supporting balanced pool chemistry. Stronger than household bleach, this high-concentration formula requires less product to achieve clean, sparkling water. It's a cost-effective, professional-grade sanitizer for both residential and commercial swimming pools. Each gallon delivers 12.5-percent sodium hypochlorite, providing the high-strength concentration needed for powerful shock treatment and clear, sanitary water. Unlike granular shock, Champion dissolves instantly with no residue, scaling, or cloudiness so your water stays crystal clear. Its unscented formula is gentle for sensitive swimmers while maintaining powerful disinfecting performance. Application is simple and effective. The ready-to-use liquid requires no mixing or pre-dissolving. Simply pour it into your pool in the evening or early morning for optimal results. Use it weekly to boost chlorine performance, reduce chloramines, and maintain healthy, balanced water. Always test chlorine levels and wait until free chlorine drops below 4.0 PPM before swimming. Whether you’re maintaining a backyard pool or managing larger facilities, Champion Pool Shock 12.5-percent Liquid Chlorinator provides fast-acting sanitation to keep your water clear, safe, and swim-ready all season long.