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H2X Swim Spas
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H2X Trainer 21D
Transform your backyard with the H2X Trainer 21D, a dual-zone swim spa that seamlessly blends exercise and relaxation. This 21-foot swim spa has an expansive swim area, a hot tub section with massage seats, and the integrated sun lounge. With an adjustable water current, you can swim or exercise at your pace. On the hot tub side, say good-bye to tensions, aches, and daily stresses. Customize your experience with independent temperature controls, adjustable jets, and ambient LED lighting.
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H2X Trainer 18 Approx 4.5' of water depth
Trainer 18 is the deepest model in the H2X line, featuring a large uninhibited area with increased depth for buoyancy that is perfect for fitness training, aquatic exercise, and family fun. With incomparable health rewards, hydrotherapy, and relaxation this swim spa offers a full measure of enjoyment.
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H2X Trainer 15 D Approx 4.5' of water depth
This perfect backyard upgrade for people who want to swim, exercise, and spend time with family. Easier to maintain and with a smaller footprint, the all-new H2X Trainer 15D is an ideal alternative to a traditional pool. Plus, premium massage jets and ergonomic seating offer the perfect place to unwind.
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H2X Trainer 15 Approx 3.5' of water depth
Trainer 15 features a large uninhibited area that is perfect for family fun and exercise. The VIP (Velocity Injector Plate) Technology enhances the swim jet performance to an impressive 45% over a standard swim spa. Plus, when it comes to hydrotherapy, rehabilitation and relaxation, nothing compares to the Xtreme Therapy Seat and Xtreme Therapy Cove.
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H2X Trainer 12 Approx 3.5' of water depth
Trainer 12 includes aquatic fitness equipment, the H2XerciseTM Fitness System*, for muscle-defining and strength-building exercises; while Master Spas’ exclusive Xtreme Therapy Seat and Cove delivers luxurious, head-to-toe, muscle massaging and mind-relaxing healing.
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H2X Therapool “D” Deep Approx 4.5' of water depth
The Therapool D measures close to 8 ft x 11 ft and has a massive 60 inch depth. It has more than 50 jets with three high-performance flow stream swim jets for resistance training and aquatic exercise. It comes standard with the H2XerciseTM Fitness System* for rowing and strength training. It also comes standard with waterline LED lighting, a waterfall and stainless steel jets. The Therapool D is the perfect swim spa for exercise, fitness and family fun.
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H2X Therapool SE Approx 3.5' of water depth
This fitness spa is loaded with high-end features but at a surprisingly affordable price. The large flat floor is perfect for aquatic exercise and rehabilitation, while three high-performance flow stream swim jets provide a current for walking or running in place. At the end of your workout, slip into one of the ergonomic seats, letting the hydrotherapy jets help you to recover and relax.
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H2X Therapool 13 Approx 4' of water depth
The largest model of the Therapool series, the Therapool 13 has an uninhibited
exercise area and therapy seating for the ultimate in wellness. It has 28 jets with
two high-performance flow stream swim jets for resistance training and aquatic
exercise. It comes standard with the H2XerciseTM Fitness System for rowing
and strength training. Whether you want to exercise or simply relax, this is the
perfect swim spa to re-energize your wellness routine and backyard. -
H2X Therapool 15 Approx 4' of water depth
The largest model in the Therapool Series, the Therapool 15 is a great
alternative to a backyard pool and can be used year-round. It has an
uninhibited exercise area and features 28 jets with two high-performance
flow stream swim jets for resistance training and aquatic exercise.
It comes standard with the H2XerciseTM Fitness System for rowing
and strength training. -
Challenger 21D Approx 4.5' of water depth
Redefine backyard living with the H2X Challenger 21D. This dual-zone swim spa design provides an expansive swim area, a separate hot tub section, and an integrated sun lounge. Offering the benefits of a pool with the therapy for a hot tub, this 21-foot swim spa is the perfect spot for swimming in place, water exercise, recreation, and relaxation. Personalize your sessions with independent temperature controls, adjustable jets, and LED lighting.
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Challenger 18 D Approx 4.5' of water depth
The Challenger 18 D features an uninhibited swim area and increased depth for buoyancy. With an airless jet system, this swim spa is ideal for
endurance athletes, fitness enthusiasts, and wellness seekers. The variable speed current lets you set the pace, whether you want a challenging
workout or recovery session. After a workout, you’ll enjoy the relaxation and rejuvenation of the Xtreme Therapy Cove and contoured seats with massaging jets. -
Challenger 15 D Approx 4.5' of water depth
Train, recover, and relax in the comfort of your backyard with the H2X Challenger 15D. With an obstacle-free swim area, you can swim, exercise, and enjoy quality time with your family. Updated for 2025, the airless swim current delivers a superior swim experience that you can adjust based on your goals and fitness level. Seamlessly combining the benefits of a pool with a hot tub, this 15-foot swim spa features strategically placed massage jets that can be adjusted for your needs.
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. ”