Quick Pool Shock 12 x 1 lb
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PoolSupplyWorld PSW-CSY400 Cal-Hypo Super Strength Pool Shock 12 x 1 lb Bag


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Short Description

This super strength chlorine shock comes in 12 one pound bags for convenient application with fast results.

Pool Chemical Features:

  • Includes 12 convenient one pound packages
  • For use in pools and spas
  • Fast dissolving granular shock
  • 65% available chlorine
  • Active ingredient: calcium hypochlorite
  • Dosage: 1lb. per 10,000 gallons
  • Note: Items received have the same chemical make-up, but may not look exactly like the item pictured above.


Cal-Hypo ZAP Super Strength Pool Shock gives you the boost of chlorine you need if you’re opening your pool for the season, or if you’re looking to superchlorinate bacteria and algae in your pool or spa. This shock is applied quickly and starts to work right away. Its powerful granules need to be pre-mixed to avoid staining vinyl liners, but allows for easier application. Cal-Hypo ZAP helps maintain sparkling clean swimming water that’s safe for you and your family to enjoy.

Store Cal Hypo shock away from other pool chemicals as it can be hazardous if it comes into contact with them.


Stabilized to ensure effectiveness

Stabilized to ensure effectiveness

Stabilized Cal-Hypo has been treated with calcium as opposed to traditional stabilized chlorine, which is treated with cyanuric acid. Calcium and cyanuric acid act like sunscreen to protect against high heat and UV rays that can burn the chemical and render it ineffective. Stabilized chlorine is more effective over a longer period of time, and is perfect for use in especially hot climates or in pools that receive full sun for the majority of the day
Use as part of regular maintenance

Use as part of regular maintenance

Cal-Hypo ZAP is ideal for spring openings and for battling stubborn algae blooms. Additionally, we recommend shocking your pool water weekly during peak swimming season to destroy bacteria, algae, and organic waste that regular chlorination may have missed. You’ll always feel sure that your water is safe and ready to be enjoyed
For clean, fresh water

For clean, fresh water

Cal-Hypo ZAP Super Strength Pool Shock can take your pool or spa water from cloudy to sparkling clear in no time. These convenient, pre-measured packages are easy to store and easy to use, so you’ll always be sure you get the right dosage for your needs
Products in this Package:
PoolSupplyWorld PSW-CSY399 Cal-Hypo Super Strength Pool Shock 6 x 1 lb Bag