Demo or Refurbished & “Certified” Swim Spas.

Available & ready to deliver: Demo Swim Spas: Check back often as they come and go!

  1. In Store & on Floor in “Manteca” 1  only, Serial # 150220,  2015″ H2X Therapool “SE” with Portobello Cabinet, with SS Jets, Fusion BT sound system with speakers, LED Colorscape lighting! Included: Shipping, Delivery, Set up, Cover, Step, Exercise Kit & Chemical start up kit! 51″ tall!  *SOLD AS WEB SPECIAL*!



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3) 2013 H2X Trainer 12 with an “Automatic Cover” available  with Portobello Cabinet, Grey automatic cover, with SS Jets,  LED Colorscape lighting! Included: Shipping, Delivery, Set up, Cover, Step, Exercise Kit & Chemical start up kit! 51″ tall! 

Now REDUCED$11,999 Delivered!!

Previously owned & refurbished!

Previously owned & refurbished! Shown with optional auto lift chair!



H2X Trainer 12










3) 2014 MP Momentum DEEP with Roll Up Cover. Used only 3 months!!!! Sterling Silver Marble & Portobello Cabinet. “Loaded” as owner is moving out of state. Willing to let go @$24,999 Crane needed to remove from property Call for details..

E2E Covers Promo model-momentum-300x1391______________________________________________________________________________________________________________________________________________________________________


Our Installations

  • Large Back Yard Ideas

    Large Backyard Ideas
  • Swim Spas With Decks

    Swim Spas With Decks
  • Indoor Swim Spas

    Indoor Swim Spas
  • In-ground Ideas

    Indoor Swim Spas
  • Large Back Yard Ideas
  • Swim Spas With Decks
  • Indoor Swim Spas
  • In-ground Ideas

Swim Fitness

  • Michael Phelps Swim Fitness Commercial

  • Swim Fitness Bio Of Joe Stone

Our Testimonials

  • testimonials Hi, I’m Michael Phelps. I’ve been swimming just about my whole life and I know the benefits of swimming regularly.But sometimes access to a pool is limited and not every backyard or climate is right for a pool. That’s whyMaster Spas took my input and that of my coach,Bob Bowman,to create the perfect solution-the Michael Phelps Signature Swim Spa by Master Spas. ”

    Michael Phelps

  • testimonials Thank for your great service! As a business owner in the pest control industry, customer service is a rare breed these days, and I appreciate your prompt response in my questions. "

    Windsor, CA

  • testimonials Just a couple words re our terrific service from Swim Fitness with Joe and Ali – everything smoothly handled with care and gentle precision on a tight delivery and setup- may we swim happily ever after! "

    Jackie and Dennis, Millvale

  • testimonials Wow, that’s great news! I really appreciate all your wonderful service. Boy, this is what America was like in the 60′s and 70′s. Thanks! (He called to buy a new cover and we replaced his cover under warranty, which he didn’t realize was a possibility.)

    San Ramon, CA

  • testimonials Ali, I have lost 5 lbs swimming 1/2 hr every other day for the last 3 weeks. Love my swim spa!!! "

    Sedona, Arizona

  • testimonials Joe Stone at Swim Fitness of Nor Cal was very helpful and tolerant of all my many questions during the research phase of shopping for my new Michael Phelps Signature Swim Spa. He always answers phone calls and emails promptly and is never too busy to help out. The delivery and installation of my swim spa went smoothly. I am very happy with the product and the service, and would highly recommend Joe and his company. "

    John C. Lekas, MD

  • testimonials From our first call to get information about swim spas, through process of purchasing our MP Momentum and having it installed, and to this day, Joe has been extremely helpful and genuinely nice. He knows the products and answered every question we had. I would highly recommend Swim Fitness. ”

    Rob and Christie Hartman

  • testimonials We want to offer our thanks for a nice job in delivering our swim spa! Also thank you for the workout book! We are really looking forward to reading the book and applying the workout techniques in our swim spa! "

    Randy and Dana Coleman
    Columbus, MT

  • testimonials I simply desire to offer my gratitude and thanks for a job well done in selling and delivering our Michael Phelps swim spa! Your patience and assistance throughout the process was well worth our time. ”

    Carol Stracner
    Henderson, Nevada

  • testimonialsThank you for your kindness and support, with your assistance you added to a great experience. ”

    Kathy Harvey

  • testimonials Just a quick note to let you know how much I am enjoying my swim spa. I love it! I love doing my water aerobics workout in it every chance I get, and it’s great because that can be at 10 am, noon, 4 pm, or 8 pm! No more running to the gym for their classes! I can set it at the temperature that I like–not too hot or too cold. It’s so easy to maintain. My five grandkids love to play in it when they come over, too. I could go on and on, but just wanted to let you know — I LOVE IT! The delivery and service were great also. Thanks again! "

    Christine in Escalon, CA

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