
HASA 4 Gallon Liquid Chlorine Case
Product Overview
Pool techs reach for HASA Chlor when they need a high-strength liquid sanitizer that doesn't add stabilizer or calcium to the water.
This 4 Gallon case of HASA Chlor contains a 12.5% sodium hypochlorite solution, which is significantly stronger than standard retail bleach. Because it is a liquid, the Sodium Hypochlorite is immediately available to destroy algae and bacteria without needing to dissolve, making it the standard specification for rapid sanitization. Each case provides 15.14 Liters of product, ensuring you have enough chlorine to raise 10,000 gallons of pool water by 1ppm with just a small dose.
Benefits & What Makes It Different
12.5% Sodium Hypochlorite
This professional-grade concentration is roughly double the strength of household bleach, allowing for smaller dosing volumes to achieve the same sanitizing effect.
Zero Cyanuric Acid
Unlike chlorine tabs or dichlor shock, this liquid formula adds no stabilizer, preventing 'lock' and keeping your water chemistry manageable over long seasons.
15.14 Liters Total Volume
The 4 Gallon case provides a reliable supply for routine maintenance or heavy-duty shock treatments without affecting your calcium hardness levels.
Product Details
Sodium Hypochlorite 12.5%
10-11 oz per 10,000 gallons to raise Free Chlorine by 1ppm
Compatibility
- Do not mix with acids or any other pool chemicals
- Wait at least 30 to 60 minutes before swimming after application
- Safe for use as a supplemental shock in saltwater pools
When To Use This
Pro Tip
In hot climates like Texas, chlorine burns off rapidly; adding your HASA Chlor in the evening allows it to work overnight without UV interference, maximizing its efficiency.
Common Questions & Instructions
How much HASA Chlor do I need to shock my pool?
To raise your free chlorine level by 1ppm in 10,000 gallons of water, you typically use about 10-11 fluid ounces of this 12.5% sodium hypochlorite solution.
Does liquid chlorine expire or lose strength over time?
Yes, Sodium Hypochlorite naturally degrades, especially when exposed to heat and sunlight; we recommend storing this 4 Gallon case in a cool, dark place to maintain its potency.
Is HASA Chlor safe for all pool surfaces?
It is a proven choice for vinyl, fiberglass, and plaster pools because it dissolves instantly and won't bleach liners or cause scaling like some granular shocks.
Delivered today to your DFW neighborhood
Order this item by 2 PM Central on a weekday, and we'll have it on your driveway by evening. Same-day delivery is FREE to every ZIP in our DFW coverage area — no minimum — or it's free with our weekly service plan.



