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HASA 4 Gallon Liquid Chlorine Case
HASA
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HASA 4 Gallon Liquid Chlorine Case

$35.99
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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.

Why Pool Pros Trust This

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

Active Ingredient

Sodium Hypochlorite 12.5%

Recommended Dosing

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

Rapid algae treatment and green pool recoveryDaily sanitization without increasing Cyanuric Acid (CYA) levelsShocking the pool after heavy bather loads or significant rainstorms

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.

Same-Day DFW Delivery

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.

Free PDF Guide

Get Our Local DFW Pool Maintenance Checklist

Stop guessing. Download the exact month-by-month checklist our certified technicians use to keep Texas pools crystal clear year-round.

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