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Fast-acting calcium hypochlorite chlorine granules provide 65% minimum available chlorine for hard-hitting immediate results! Note: this item cannot be shipped to Alaska or Hawaii item will be removed from your order.



Multi-purpose - this pool shock sanitizes, clarifies, and controls algae giving your swimming pool crystal clear water. Works best at night - maximize performance by adding this shock to your pool at night.


Fast acting pool shock treatment: Quickly boost the chlorine levels in your pool to remove algae and other contaminants for crystal clear pool water. Made in the usa: doheny's Super Shock is manufactured and packaged in the USA.

Mix before you fix - it is best to dilute super shock in a bucket of water before dispensing it around the pool which can prevent liner staining and cloudy water. This shock will raise your free chlorine levels, Super Shock is very effective and efficient for a quick chlorine boost. Pool chlorine shock - maintain your swimming pool or spa with reliable pool chemicals and treatment supplies that you can depend on from Rx Clear.
Rx clear strives to provide quality products for a safer, Rx Clear does it all giving you crystal clear water that fits your needs. Pool shock with algaecide - kill the algae in your swimming pool by adding 3 bags of shock per 10, cleaner, and more enjoyable swimming experience. When it comes to correcting your swimming pool, 000 gallons of pool water. Pool shock treatment - rx clear’s super shock contains 68% calcium hypochlorite, yielding 65% available chlorine making this similar to Mega Shock, and pH levels giving you crystal clear water for a more enjoyable swimming experience.

1. DryTec
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1-Pound, 24-Pack, DryTec 1-1901-24 Calcium Hypochlorite Chlorine Shock Treatment for Swimming Pools
#adDryTec #ad - 24 bags 1-pound each. Recommended dosage: 1 pound per 10, 000 gallons of water. Kills bacteria, controls algae, and destroys organic contaminants in pools. 68% calcium hypochlorite. Fast-acting quick-Dissolving Swimming Pool Sanitizer.More information #ad
Brand | DryTec #ad |
Manufacturer | Robelle Industries #ad |
Height | 6 Inches |
Length | 24 Inches |
Weight | 24 Pounds |
Width | 12 Inches |
Part Number | 1-1901--24 |
Model | 1-1901--24 |
More information #ad
2. NAZHUA
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Calcium Hypochlorite Super Shock 50lb, Zappit 73% Cal Hypo Pool Shock
#adNAZHUA #ad - Fast dissolving granular formula. 70% available chlorine, Pool Shock and Super Chlorinator. Pool shock and Super Chlorinator. 1 lb will provide 2ppm of available chlorine in 40, 000 gallon pool. Kills 99. 9% of bacteria or algae.More information #ad
Brand | NAZHUA #ad |
Manufacturer | Axiall #ad |
Height | 12.8 Inches |
Length | 18.8 Inches |
Weight | 50 Pounds |
Width | 12.8 Inches |
Part Number | W8000560 |
Model | W8000560 |
More information #ad
3. In the Swim
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50 Pounds, In The Swim Chlorine Granules, Granular Calcium Hypochlorite for Sanitizing Swimming Pools, Fast Dissolving, Cal-Hypo Pool Shock
#adIn the Swim #ad - Must pre-dissolve/dilute to prevent bleaching of the liner. Cal-chlor granules can be used in swimming pools, spas and hot tubs.Fast-acting calcium hypochlorite chlorine granules provide 65% minimum available chlorine for hard-hitting immediate results! Note: this item cannot be shipped to Alaska or Hawaii item will be removed from your order.
More information #ad
Fast-acting calcium hypochlorite Cal-Chlor chlorine granules provide 68% available chlorine for hard-hitting immediate results! Clears cloudy water or dull water appearance. Non-stabilized formula is ideal for super shocking or everyday use, contains no cyanuric acid.Brand | In the Swim #ad |
Manufacturer | In The Swim #ad |
Height | 13 Inches |
Length | 21 Inches |
Weight | 50 Pounds |
Width | 13 Inches |
Part Number | 25230 |
Model | 25230 |
More information #ad
4. GLB
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1-Pound, 24-Pack, GLB 23224-24 73% Calcium Hypochlorite Chlorine Shock Treatment for Swimming Pools
#adGLB #ad - Super chlorinates pool water. Clarifies pool water. Chlorine pool shock, 73% calcium hypochlorite. Prevents algae growth.More information #ad
Brand | GLB #ad |
Manufacturer | Dry Tec #ad |
Height | 10 Inches |
Length | 12 Inches |
Weight | 24 Pounds |
Width | 14 Inches |
Part Number | 23224-24 |
Model | 23224-24 |
More information #ad
5. HTH
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Prevents Algae and Bacteria, Super-Chlorinate Swimming Pools, Calcium Hypochlorite Cal-Hypo, Good for Weekly Use, HTH Ultra Pool Shock, 40 Pound Bucket
#adHTH #ad - All-in-one weekly chlorine boost increases chlorine levels quickly. Cal hypo for visibly sparkling water. Treats up to 10, 000 gallons of pool water. Prevents stains & scale. 56% available Chlorine. 1 lb.More information #ad
Brand | HTH #ad |
Manufacturer | INNOVATIVE WATER CARE GLOBAL #ad |
Height | 10.2 Inches |
Length | 14.8 Inches |
Weight | 40 Pounds |
Width | 11.7 Inches |
Part Number | 22022 |
Model | 22022 |
More information #ad
6. Rx Clear
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Rx Clear Mega Shock | 73% Calcium Hypochlorite | Kills Algae in Swimming Pools | Works As Pool Sanitizer Clarifier and Algicide | One Pound Bags | 6 Pack
#adRx Clear #ad - Mix before you fix - add this powder to a bucket of water before you add it to your pool. Wait to swim 8 to 10 hours after application.Multi-purpose - this pool shock sanitizes, clarifies, and controls algae giving your swimming pool crystal clear water. Works best at night - maximize performance by adding this shock to your pool at night.
More information #ad
Incredibly strong - due to its high percentage of chlorine, Mega Shock is very effective and efficient for a quick chlorine boost. Beat the green: - kill the algae in your swimming pool by adding 2 bags of shock per 14, 000 gallons of pool water. Add a 1 lb bag per 10, 000 gallons of pool water.Brand | Rx Clear #ad |
Manufacturer | Rx Clear #ad |
Weight | 1 Pounds |
More information #ad
7. AQUA-ORG PLUS
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Granular Calcium Hypochlorite 65% Pool Shock for Swimming Pools, Spas and Hot Tubs 55 Pound, AQUA-ORG PLUS
#adAQUA-ORG PLUS #ad - For use in swimming pools, spas and hot tubs. Our 65% calcium hypochlorite granules are perfect for immediate & dramatic results when need to clean & clear the cloudy water in your pool, spa, and hot tub.More information #ad
Un2880 calcium hypochlorite Hydrated 5. 1 pg ii. Cas number: 7778-54-3 Calcium Hypochlorite. Us epa registered - Filed & Approved Biocide.Brand | AQUA-ORG PLUS #ad |
Manufacturer | Organic Industries #ad |
Height | 13 Inches |
Length | 15.5 Inches |
Width | 13 Inches |
Part Number | R-CH-O65-EUP-18-P100 |
Model | 065 |
More information #ad
8. Doheny's
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Doheny's Chlorine Super Shock | Quick Dissolving Fast-Acting Pool Sanitizing Treatment | Pro-Grade Concentrated 68% Calcium Hypochlorite | 1LB Treats 10,000 Gallons | Made in The USA | 50 LB
#adDoheny's #ad - Spring openings and pools that have extensive algae blooms may require 2-3 doses to properly treat and sanitize. How to use: use one 1lb bag of super shock per 10, 000 gallons of water.Fast acting pool shock treatment: Quickly boost the chlorine levels in your pool to remove algae and other contaminants for crystal clear pool water. Made in the usa: doheny's Super Shock is manufactured and packaged in the USA.
More information #ad
Pro-grade cal hypo pool shock for regular maintenance: Made of 68% calcium hypochlorite, with 65% available chlorine, regular doses of this chlorine shock treatment keep your pool clear all season long. Easy to use: each pound of chlorine shock comes in its own easy-to-use bag for quick, measure-free use.Brand | Doheny's #ad |
Manufacturer | Doheny's #ad |
Weight | 50 Pounds |
More information #ad
9. Rx Clear
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Rx Clear Super Shock for Swimming Pools | Chlorinator and Algaecide | 68% Calcium Hypochlorite Shock | Kill Pool Algae for a Crystal Clear Pool | One Pound Bags | 12 Pack
#adRx Clear #ad - The rx clear brand is the premier choice for a trusted cleaning product to keep your pool in its best shape. Works best at night - for the best results use super shock at night in order to prevent the sun from eating up the shock since it is not stabilized; it’s best to shock when the sun isn’t out for maximum performance.Mix before you fix - it is best to dilute super shock in a bucket of water before dispensing it around the pool which can prevent liner staining and cloudy water. This shock will raise your free chlorine levels, Super Shock is very effective and efficient for a quick chlorine boost. Pool chlorine shock - maintain your swimming pool or spa with reliable pool chemicals and treatment supplies that you can depend on from Rx Clear.
More information #ad
Due to its high percentage of chlorine, water hardness, but slightly less concentrated. Add this powder to a bucket of water before you add it to your pool. Do not swim for 8 to 10 hours after application. Rx clear strives to provide quality products for a safer, Rx Clear does it all giving you crystal clear water that fits your needs. Pool shock with algaecide - kill the algae in your swimming pool by adding 3 bags of shock per 10, cleaner, and more enjoyable swimming experience. When it comes to correcting your swimming pool, 000 gallons of pool water. Pool shock treatment - rx clear’s super shock contains 68% calcium hypochlorite, yielding 65% available chlorine making this similar to Mega Shock, and pH levels giving you crystal clear water for a more enjoyable swimming experience.
Brand | Rx Clear #ad |
Manufacturer | Rx Clear #ad |
Weight | 1 Pounds |
Part Number | NaN |
More information #ad
10. GLB Pool and Spa Products
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1 lb, GLB Pool and Spa Products GLB71428A Calcium-Hypochlorite Super Charge Shock
#adGLB Pool and Spa Products #ad - Controls algae. Kills bacteria. Destroys organic waste. Fast dissolving, granular shock treatment.More information #ad
Brand | GLB Pool and Spa Products #ad |
Manufacturer | GLB Pool and Spa Products #ad |
Height | 12 Inches |
Length | 6 Inches |
Weight | 1 Pounds |
Width | 6 Inches |
Part Number | GLB71428A |
Model | GLB71428A |
More information #ad