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Best Pool Shocks

Pool Shocks: Dive into our top 10 picks for the best pool shock treatments on the market. From powerful chlorine-based options to eco-friendly alternatives, we’ve curated a selection that leaves your pool crystal clear and clean. Discover the perfect pool shock for your needs by exploring our detailed comparisons. Find the right one to keep your pool water balanced, eliminate harmful bacteria, and enjoy a refreshing swimming experience.

Sale1
HTH 52037R Pool Care Shock Advanced, Swimming Pool Chemical – Cal Hypo Formula, Prevents Bacteria & Algae, Restores Crystal Clear Water – Shock Treatment, 1lb (12 Pack)
  • BENEFITS: Stay all clear for cannonballs; This fast-dissolving, convenient 4-in-1 formula kills bacteria and algae, reduces chlorine odor and irritation, and quickly restores crystal clarity
  • FEATURES: Multi-functional shock treatment for weekly use to solve 90% of pool water problems within 24 hours and restore crystal clarity
  • VISIBLY BRILLIANT SPARKLE: This Cal Hypo based formula sanitizes without adding cyanuric acid (CYA) to prevent overstabilization or chlorine lock
  • COMPATIBLE WITH ALL SWIMMING POOLS: This product is great for all pool types including vinyl-lined pools and saltwater systems
Sale2
HTH 52036R Pool Care Shock Advanced, Swimming Pool Chemical – Cal Hypo Formula, Prevents Bacteria & Algae, Restores Crystal Clear Water – Shock Treatment, (6 Pack)
  • BENEFITS: Stay all clear for cannonballs; This fast-dissolving, convenient 4-in-1 formula kills bacteria and algae, reduces chlorine odor and irritation, and quickly restores crystal clarity
  • FEATURES: Multi-functional shock treatment for weekly use to solve 90% of pool water problems within 24 hours and restore crystal clarity
  • VISIBLY BRILLIANT SPARKLE: This Cal Hypo based formula sanitizes without adding cyanuric acid (CYA) to prevent overstabilization or chlorine lock
  • COMPATIBLE WITH ALL SWIMMING POOLS: This product is great for all pool types including vinyl-lined pools and saltwater systems
Sale3
HTH 52031 Swimming Pool Care Shock, Swimming Pool Chlorinator Boosts Chlorine Levels, Cal Hypo Formula, 13.3oz (1 Pack)
  • BENEFIT: Shock treat, sanitize, clarify, and help prevent bacteria and algae in your swimming pool water, all with this convenient, easy-to-use product
  • FEATURES: Multi-use pool shock with Cal Hypo; Use weekly to solve 90% of pool water problems within 24 hours; Fast-acting and fast-dissolving
  • VISIBLY BRILLIANT SPARKLE: This Cal Hypo based formula sanitizes without adding cyanuric acid (CYA) to prevent overstabilization or chlorine lock
  • COMPATIBLE WITH ALL SWIMMING POOLS: This product is great for all pool types including vinyl-lined pools and saltwater systems
Sale4
Clorox® Pool&Spa™ Shock XTRABLUE® Plus, Kills Bacteria & Algae in Swimming Pools, Swim-Ready in 15 Minutes, (12-Pack)
  • 6 in 1 Formula: Kills bacteria and algae to maintain a clear swimming pool. Our algae-fighting formula prevents algae for crystal-clear water. Destroys contaminants to aid filter performance and clear dull, cloudy water
  • Swim-ready in 15 minutes: Fast dissolving formula works quickly so you can treat and swim in just 15 minutes.
  • Compatibility: This product is safe for all swimming pool surfaces, including vinyl, plaster, fiberglass, and tile.
  • Usage: Use 1 lb. per 12,000 gallon of water. Shock pool weekly and after heavy use, high temperatures, or rain.
5
Clorox® Pool&Spa™ Shock Clear, for Crystal Clear Swimming Pool Water, Swim-ready in 15 minutes, Suitable for vinyl pools (6-Pack)
  • 4 in 1 Formula: Kills bacteria and won’t impact pH. Clears cloudy water. Destroys contaminants. Improves filter performance
  • Swim-ready in 15 minutes: Fast dissolving formula works quickly so you can treat and swim in just 15 minutes
  • Compatibility: This product is safe for all swimming pool surfaces, including vinyl, plaster, fiberglass, and tile.
  • Usage: Use 1 lb. per 12,000 gallon of water. Shock pool weekly and after heavy use, high temperatures, or rain.
Sale6
Clorox® Pool&Spa™ Shock XTRABLUE® Plus, Kills Bacteria & Algae in Swimming Pools, Swim-Ready in 15 Minutes, (6-Pack)
  • 6 in 1 Formula: Kills bacteria and algae to maintain a clear swimming pool. Our algae-fighting formula prevents algae for crystal-clear water. Destroys contaminants to aid filter performance and clear dull, cloudy water
  • Swim-ready in 15 minutes: Fast dissolving formula works quickly so you can treat and swim in just 15 minutes.
  • Compatibility: This product is safe for all swimming pool surfaces, including vinyl, plaster, fiberglass, and tile.
  • Usage: Use 1 lb. per 12,000 gallon of water. Shock pool weekly and after heavy use, high temperatures, or rain.
Sale7
In The Swim Pool Shock – 68% Cal-Hypo Granular Sanitizer for Crystal Clear Water – Defends Against Bacteria, Algae, and Microorganisms – 24 X 1 Pound
  • Fast-Acting Algae Control: Calcium Hypochlorite (Cal-Hypo) is an effective non-stabilized chlorine shock treatment, ideal for routine maintenance in your swimming pool
  • Versatile Use: Suitable for above ground or in-ground swimming pools, spas, and hot tubs; Pre-dissolve or dilute to avoid bleaching the liner
  • High Chlorine Content: 65% available chlorine, provides powerful sanitization for crystal-clear water
  • Easy Application: Pre-dissolve or dilute to avoid bleaching swimming pool liners; Spread granules in the deepest part of the pool; Brush if needed
8
HTH 52035 Swimming Pool Care Shock Advanced, Swimming Pool Chemical, Cal Hypo Formula, 1lb
  • BENEFITS: Stay all clear for cannonballs; This fast-dissolving, convenient 4-in-1 formula kills bacteria and algae, reduces chlorine odor and irritation, and quickly restores crystal clarity
  • FEATURES: Multi-functional shock treatment for weekly use to solve 90% of pool water problems within 24 hours and restore crystal clarity
  • VISIBLY BRILLIANT SPARKLE: This Cal Hypo based formula sanitizes without adding cyanuric acid (CYA) to prevent overstabilization or chlorine lock
  • COMPATIBLE WITH ALL SWIMMING POOLS: This product is great for all pool types including vinyl-lined pools and saltwater systems
Sale9
Doheny’s Super Pool Shock | Pro-Grade Chlorine Shock, Quick-Dissolving, Fast-Acting 68% Cal-Hypo Granular Pool Shock | 24 x 1lb Bags, Proudly Made in The USA
  • Fast-Acting Pool Shock: Instantly boosts chlorine levels to eliminate algae and contaminants, keeping your pool crystal clear.
  • Pro-Grade Cal Hypo Shock: Made with 68% calcium hypochlorite and 65% available chlorine for powerful, long-lasting pool maintenance.
  • Convenient & Easy to Use: Pre-measured 1lb bags ensure quick, hassle-free application—no measuring needed.
  • Effective Dosage: Use 1lb per 10,000 gallons; for spring openings or heavy algae blooms, apply 2-3 doses for best results.
10
Clorox® Pool&Spa™ Shock Plus, for Crystal Clear Swimming Pool Water, Swim-ready in 15 minutes, Suitable for vinyl pools (6-Pack)
  • 4 in 1 Formula: Kills bacteria and won’t impact pH. Clears cloudy water. Destroys contaminants. Improves filter performance
  • Swim-ready in 15 minutes: Fast dissolving formula works quickly so you can treat and swim in just 15 minutes
  • Compatibility: This product is safe for all swimming pool surfaces, including vinyl, plaster, fiberglass, and tile.
  • Usage: Use 1 lb. per 12,000 gallon of water. Shock pool weekly and after heavy use, high temperatures, or rain.

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