Many times we are asked "what is the best ozone system for our HotSpring Spa? If you notice, we list two ozonator options for HotSpring Spas in our estore: 1) the Watkins PN 72602 FreshWater III; and 2) the KZO Technologies CoronaZone. Below is a lttle bit of our opinions on each system.

The FreshWater III is the Watkins factory OEM and replacement ozone system for all HotSpring and Watkins-made spas.

The Benefits:

  • Factory Ozone
  • Reliable
  • Quiet

The Challenges:

  • 1 year factory warranty
  • Small ozone generator (about 1.5")
  • Check Valve on the outlet and is in contact with ozone and nitric acid


The CoronaZone is designed and manufactured by HotSpring Dealers and sold primarily to HotSpring Dealers


The Benefits:

  • 2-Year Warranty (can also be rebuilt after warranty at fraction of the cost of a new complete unit)
  • Reliable
  • Large ozone generator (7"), increases life and ozone generating area
  • Check Valve on inlet -- never is in contact with ozone and nitric acid, increasing its life
  • Adjustable inlet air flow - can adjust the ozone bubbles and eliminates "burp"

The Challenges:

  • Non-factory
  • Because the generator is larger has more of a hiss to unit (though cannot be heard with spa equipment door secured).

Prescott Spas keeps both these units in stock.

 Don't See What You Need? Contact Us...

Oftentimes we will have most Watkins Brand Spa Parts in stock, but do not list them all in our estore. Primarily we keep what we would consider "best sellers" and "in-highest-demand" parts uploaded in our store.  However, please contact us -- we may just have the part you need.  We are knowledgeable on all Watkins-made spas and can most often answer any spa technical questions, find the part you need, and troubleshoot any issues with your hot tub. Contact Us

We respond to and answer emails fairly quickly, and when you call during normal business hours you will get a live person.

Thank you, and happy hot-tubbing.

1-877-775-9884 (toll free)

We at Prescott Spas would like to thank you for your continued support, and we look forward to serving you and your hot tub needs throughout the year. 

Every year, we strive to get better at what we do.  We are constantly looking for new ways to deliver product, knowledge, and service to our valued customers.  This year, we have decided to carry Silk Balance to give you an alternative option to your standard spa care products.  Silk Balance eliminates the need to constantly test, balance, and adjust your spa water.  It is pre-mixed to automatically do all of that for you.  In addition, it drastically cuts back your sanitizer and/or shock usage.  The best part is that  It leaves your skin feeling silky soft.


Come into the showroom to feel the Silk Balance difference!  Or for more information, give us a call today at (928) 775-9884.

Can't wait to get your spa on Silk Balance? 
Get started today by clicking HERE (Prescott Spas E-Store)
For a limited time only, you are able to purchase the Silk Balance bottle and Clean Start Combo pack for $50 below retail!
All of us at Prescott Spas strive to provide you, our customers, with the best possible product, service, and support.  We have an abundant amount of water care and product knowledge to answer your questions and provide you with answers.  These are things that cannot be found on the internet or smartphone.  We are just a phone call away.  If you have any ideas or suggestions that will help us better service your needs, please do not hesitate to give us a call. (928) 775-9884  We want to hear from you, good or bad.  That’s how we make our company better.
Best Regards,
Nick Kasten
Service and Marketing

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