Recreational Pool and Spa Water Treatment Products

Reliable, Effective and Safe for Worry-Free Swimming

HASA’s premium water treatment products have been trusted by pool owners, professionals and governments for more than 60 years.

Have confidence in the cleanliness and purity of your pool water and enjoy backyard fun with your family year-round with the purest and freshest liquid pool sanitizer available. When you care for your pool with HASA’s eco-friendly, third party tested and certified products, you can achieve a pristine clean — without having to worry about unnecessary, harsh and irritating chemicals going into your water, your skin and body, or the environment.

Why Choose Liquid Chlorine for Your Pool?

Not all water treatment solutions are created equal, and HASA Sani-Clor® liquid sodium hypochlorite is a clear win for you and your family. With no additional unnecessary chemicals like cyanuric acid (CYA) or calcium, our liquid chlorine doesn’t cause cloudiness or create calcium scale build-up. This all-in-one solution for regular shock and daily sanitizing leaves you with sparkling blue water that’s free from bacteria, parasites and algae.

Pool Care and Water Chemistry Made Simple

HASA is your partner for all-things pool, with cleaning and care tips, backyard best practices and sanitization education.

Keeping up with the pool of your dreams takes more than using the right chlorine products. We’re here to be your resource for mastering pool care basics, creating a cleaning routine and dealing with the unexpected.

Trusted by the Pros

HASA water treatment solutions are not only used by pool professionals, but to sanitize drinking water across the United States.

Top Quality & Value

Liquid chlorine is the most quality and cost-effective cleaning solution vs. dry or granular products.

Specifically Targeted

Our products are designed to solve your specific water problems without creating new ones.

Training & Education

Address your water chemistry like an expert with free resources on the science behind pool care.

Clean Up After a Wildfire

Learn how to carefully restore swimming pools to safety with practical and actionable tips and advice.

Download the Resource

Pool Care Tips: From Green to Clean

Find out how to identify, treat, and prevent algae in pools from water chemistry expert Terry Arko.

Get Algae Advice

Understanding Chlorine Demand

Find out what factors lower chlorine effectiveness with our downloadable one-pager.

Download and Save

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Buy HASA Products Near You

Use our dealer and distributor locator to find out where you can purchase HASA products in your area.

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Recreational Water Treatments

Learn about HASA’s premium product to sanitize and shock pools and spas.

Explore HASA Sani-Clor^®

Individualized Assistance

Fill out the contact form or get in touch with the HASA representative in your area.

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Clean Water You Can Count On