HTH Advanced Shock | 13.3 oz | 52031

The HTH Advanced Shock – 13.3 oz (Model 52031) is a compact, high-strength granular sanitizer designed to deliver rapid water clarity and sanitation in small-to-medium pools and spas. Its premium 4‑in‑1 formula eradicates bacteria, algae, and harmful microorganisms while neutralizing chlorine odors and minimizing skin and eye irritation—all without adding stabilizers (CYA), thus preventing chlorine lock. Fast-dissolving for swift results, this single-dose packet is ideal for spot treatments, weekly maintenance, or quick clarity boosts, ensuring safe, sparkling water with minimal effort. Trusted by pool professionals and homeowners alike, HTH Advanced Shock is a convenient powerhouse in a compact size. Highlights High-Strength 4-in-1 Formula – Kills bacteria and algae, neutralizes odors, and reduces irritation for crystal-clear water. No Added Stabilizer (CYA) – Prevents chlorine lock by avoiding cyanuric acid buildup in pool or spa systems. Fast-Dissolving Granules – Delivers rapid sanitation and clarity in small-to-medium pools and spas. Convenient Single-Dose Size – 13.3 oz packet is perfect for spot treatments, weekly care, or quick cleanups. Safe and Versatile Use – Ideal for vinyl, fiberglass, and saltwater systems—trusted by homeowners and pros. How To Use HTH™ Shock: Pool Chlorine Shock 1. Add Directly To Water Or Skimmer Follow the on-pack instructions according to your pool size. 2. Repeat Weekly For best results, use HTH™ Shock as part of your weekly pool care routine to keep free available chlorine levels between 1 and 4ppm.