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Pool Professionals
Professional-grade products. Expert support. Built for your business.

Pool Owners
Eco-friendly, easy-to-use solutions to keep your pool clean and clear.

Industrial
Efficient treatment & supply. Performance-focused operations support.

Municipal
Reliable solutions & delivery. Sustainable treatment for public systems.

Dealers
Help your pool & spa customers with trusted, professional-grade products.

For Pool Pros:   Master pool chemistry & avoid costly mistakes with our guide.   

For Homeowners:   Let HASA be your year-round Pool Partner.   


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Pool Products
HASA has the chlorine, algaecides, and sanitizers you need to keep your pool or spa clean and clear.

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Hot Tub Products
Shop our full line of Hi-Temp spa care products, including Eco-Safe Clarifiers and pH Increasers.

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Ancillary Products
Our eco-friendly water treatments are science-backed and purposefully focused.

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Mini-Bulk Program
We deliver a premium 12.5% sodium hypochlorite solution for sanitizing commercial pools and large-scale water systems.

Blog
Learn from water chemistry experts.

Videos
Browse instructional how-to videos.

Safety Data Sheets
Download SDS sheets for HASA products.

Pool Chemical Calculator
Achieve balanced chemistry easily.

Liquid Chlorine For Pools
A service professional’s guide that's been made simple.

Orenda Academy
For water chemistry & professional pool management knowledge.

Events
Find HASA at an event near you.

Rewards
Explore our HASA loyalty rewards program.

Use the HASA Dealer Locator   See where our products are sold near you with this tool.   

About HASA
Learn about HASA's commitment via the returnable packaging model.

Careers
Explore open positions with HASA.

HASA: Your Parnter for Clean Water

HASA is an industry-leading manufacturer and distributor of high-quality sodium hypochlorite and water treatment chemicals. Since 1964, we have served the recreational, industrial, and municipal water markets with sustainable, safe, and effective water treatment and sanitization solutions.

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Who We Are

HASA isn’t your average water treatment chemicals supplier. For over 60 years, we’ve perfected the production of high-quality, ultra-pure sodium hypochlorite and other essential water treatment solutions that our customers can count on.

Unlike other distributors, our supply chain is vertically integrated. HASA owns and operates seven production facilities across the Western United States, ensuring complete quality control throughout the production and distribution processes.

Because we don't just supply chemicals, we can provide the purest, most reliable water treatment products with the availability and predictable transit time that pool professionals, municipalities, and industrial partners can rely on.
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Leading the Water Treatment Chemical Industry Since 1964

We work to ensure that every drop of water that families and communities come into contact with is safe, clean, and clear. With safety at the center of everything we do, HASA is committed to serving our community and providing industry-leading water treatment solutions.

60 Years of Passion and Expertise

As the premier source for bulk sodium hypochlorite sanitization and shock solutions, HASA operates nearly 10 production facilities in California, Arizona, Washington, Texas, Oregon, and Nevada. With dedicated representatives across each territory, we offer local, experienced, and personalized support to every customer.

Meet Our Reps

Our Commitment to Sustainable Manufacturing and Distribution

We make caring for our planet a priority

Our commitment to the environment goes beyond legal compliance. From our high-performing, concentrated sodium hypochlorite solutions to our returnable container and bulk delivery systems, we’re always seeking better ways to reduce material waste and improve long-term sustainability.

In an effort to reduce our landfill contributions, our signature reusable 4x1 gallon deposit cases keep over 20 million plastic bottles out of landfills annually.

Our Approach to Serving You
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Bulk Delivery You Can Count On

HASA delivers on-site, bulk liquid chlorine directly to your locations, ensuring fresh product and reduced degradation - all on a schedule that works for you.

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Safety From the Start

From raw ingredients to production and delivery, we prioritize safety in all our water treatment products and processes.

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More Than a Vendor

Working with HASA provides access to ongoing support, educational resources, and technical expertise in water chemistry and water treatment processes.

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End-to-End Expertise

We’ve built a team of in-house experts in water chemistry, professional pool care, and industrial and municipal water solutions, ensuring you have the knowledge you need to get the job done right.

Pool Care Mastery Starts Here

Whether you're battling cloudy water, scaling, or algae growth, this free guide equips you with expert insights, actionable solutions, and proven strategies to streamline your maintenance routine and avoid costly mistakes.

See What's Inside
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HASA and Orenda: Revolutionizing Water Treatment through Partnership

Two Industry Leaders, One Mission

The HASA and Orenda brands have proudly come together to further our joint goal of making access to safe, clean, and clear water the standard for all.

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HASA Sani-Clor®: The Gold Standard of Sanitization

HASA Sani-Clor® is our signature sodium hypochlorite solution and the industry standard for sanitization.
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For Pool Professionals

Source reliable, high-quality, and dependable water-treatment products for your pool service business.

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For Water Treatment Operators

Get effective and easy-to-use pool care, sanitization, and shock products you can trust.

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For Distributor Partners

Enhance your reputation and build trust by consistently delivering premium, high-performance water treatment solutions.

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That's the HASA Difference
To this day, over the 3+ year-long relationship we have enjoyed and are grateful for with HASA, our water systems enjoy a high level of compliance and potability due in large part to the proactive and professional service we have received from Christopher Cornish and HASA. They are always willing to help, even with larger projects and deliveries that are not currently under contract with them.
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Brahman Conci
Operations Superintendent for the City Distribution Division of the San Francisco Water Department

The HASA Sustainability Model for a Cleaner and Greener Future

Fill and Delivery Program

Our signature 4x1 gallon deposit cases are returnable and reusable, maximizing efficiency and sustainability in the water treatment process.
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Exchangeable Bottles

Our returnable liquid chlorine bottles allow for easy exchange of empty containers, significantly reducing costly packaging waste and disposal fees for your facility.
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No-Glug Jugs

Our patented and constantly improving innovative bottles reduce splashing and spillage when pouring, making handling simpler, safer, and less wasteful.
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Eco-Friendly, Recyclable Packaging

Our eco-friendly packaging and recycling program keeps more than 20 million plastic bottles out of oceans and landfills each year.
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Frequently Asked Questions

Discover the Clear Difference with HASA

Explore our library of resources to learn more about water chemistry, find details on our products and services, or connect with a member of our team to discuss your specific maintenance questions or water treatment needs.

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