HTH Advanced Pool Shock Granules - 1 lb | 52031

Product Description The HTH Advanced Shock 1 lb (Model 52031) is a powerful granular chlorine pool shock treatment designed to quickly sanitize and restore water clarity in swimming pools and spas. This 4-in-1 shock formula kills bacteria and algae, eliminates organic contaminants, reduces chlorine odors, and helps maintain crystal-clear water. Formulated without added stabilizer (CYA), this shock prevents cyanuric acid buildup that can reduce chlorine...

HTH Advanced Pool Shock Treatment - 1 lb | 52035

Rapidly Dissolving Cal-Hypo Formula - Transforms cloudy pool water back to sparkling clarity within 24 hours using a potent 4-in-1 sanitizing blend. Destroys Bacteria & Algae - Powerfully neutralizes harmful microorganisms while guarding against future algae outbreaks for safer, healthier swimming conditions. No Added Stabilizer (CYA) - Free from cyanuric acid, so it won't lead to overstabilization or chlorine lock, keeping your sanitizer working at...

HTH Pool Care Shock Granules - 5 lb | 52234

HTH Pool Care Shock Granules in the 5 lb size (Model 52234) delivers a high-performance calcium hypochlorite formula built for routine pool maintenance. This versatile shock treatment sanitizes, clarifies, and combats both bacteria and algae, working rapidly to bring back brilliantly clear water without introducing stabilizers such as cyanuric acid that can lead to chlorine lock. Compatible with every pool type — including vinyl-lined, concrete,...

HTH Ultra Shock Pool Treatment - 1 lb Bag - 52039

Restore your pool's brilliance in under a day with HTH Ultra Shock (Model 52039), a potent calcium hypochlorite granular shock treatment built for weekly pool care. This rapidly dissolving, multi-action formula surges chlorine concentration to obliterate bacteria, algae, stains, and scale buildup while simultaneously minimizing skin and eye discomfort and enhancing filtration performance. Because it introduces zero cyanuric acid, there is no risk of stabilizer...