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 Xtreme Therapy Cove and contoured seats with massing jets.
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The perfect spa experience begins with a impeccably designed and constructed spa pool. Master Spas® are proudly made in the Fort Wayne, Indiana, USA.
Master Spas® operates out of a state-of-the-art, 33-acre campus, they are the largest swim spa manufacturer in the world, and largest portable spa and hot tub manufacturer that makes 100% of our product in the USA. The management team has over 150 years of spa manufacturing success, and one of the strongest track records in the industry.
Master Spas Swim Spas are the official swim spas of the IRONMAN® World Championship. Our incredible turbo flow swim jets make sure that you have a consistently strong current to swim or jog against. Set the pace of your workout by changing the speed settings.
We want you to get the most out of your swim spa experience. That’s why we designed the Velocity Injector Plate (VIP) Technology for H2X Fitness Swim Spas.
The unique design of the plate helps to control turbulence and the flow of water. By changing the way the water is released into the swim spa, you will experience a current that’s smoother, more efficient, and powerful.
How It Works
The Velocity Injector Cones, along with the water flowing through the jets, help to create negative pressure around the perimeter of the jet face allowing water to be pulled through the front grill, into the main water stream.
The SoftTread™ nonslip, comfort floor system provides a better grip, traction and comfort on both the steps and floor of the swim spa. Perfect if you’re planning on jogging against the current.
The buoyancy of water reduces stress on the joints, improves range of motion and offers natural resistance which aids all fitness levels.
Swim spas allow you train year-round by allowing your to control the resistance and water temperature.
With a swim spa, fitting in a workout or recovery session is easy. It’s only steps away so you don’t have to worry about traffic or pool hours.
Once in the water, you’ll find that the H2X has a large flat floor with no hidden obstacles, making it the perfect choice for a variety of fitness exercises. You can jog in place against a gentle current, use a kickboard or use the H2Xercise System that includes a rowing kit, resistance bands, H2Xercise Bells, the H2Xercise Aquatic Workout book and comes standard with all models.
With the jets off, you can experience the benefits of resistance training and range-of-motion exercises. Water buoyancy naturally makes exercising easy on the joints and this approach offers a total mind and body workout that is effective, yet gentle.
This unique design allows for adjustability in four varying resistance levels to accommodate any user and fitness level. Whether the goal is rehabilitation or high-level performance training, these are the dumbbells for you.
Easy to connect, use the rowing kit for upper body strength and endurance training. Multiple resistance bands and attachments are perfect for a wide variety of strength and flexibility exercises.
A new way to exercise. Dr. Rick McAvoy, PT, DPT, CSCS and Professor of Hydrotherapy has authored an exercise program written exclusively for the Master Spas line of swim spas. This program is designed specifically to help you get the most out of your swim spa and is presented in an easy-to-follow format.
By combining spa and swim zones, everyone is able to relax and enjoy the same space. It also allows your swim spa to make the most of its space.
The cutting-edge Mast3rPur™ Water Management System utilizes three hot tub sanitisation methods—Ozone, UV-C light and a combination of copper and zinc produced by EcoPur® Charge filtration—to create a more effective hot tub sanitation solution than any other system on the market. The combination of these three natural sanitizers supports overall water quality and reduces the amount of harsh chemicals needed to maintain optimal water balance.
Through the Advanced Oxidation Process (AOP), Mast3Pur™ quickly rids water of contaminants, chloramines and microorganisms with help from each of the three natural sanitation methods. AOP produces powerful hydroxyl radicals that maximize disinfection and reduce chloramines; producing clean, clear, sanitized hot tub water.
Additionally, the QuietFlo Water Care System™, Master Spas® hot tub circulation pump technology, which circulates the water even when the hot tub is not in use. The synergy of the three elements combined with QuietFlo™ water circulation creates a simplicity and efficiency in water sanitation that is unmatched.
When hot tub water is exposed to germicidal UV-C light, the light kills 99% of harmful bacteria and organisms, which means less chlorine for your spa.
When absorbed into hot tub water, ozone kills pathogens and microorganisms, destroys organic contaminants and oxidizes non-organic contaminants.
The unique combination of copper and zinc in the patented EcoPur® filters creates an electro-chemical reaction that eliminates many microorganisms and removes heavy metals, such as lead and mercury.
The QuietFlo Water Care System™ utilizes a swim spa circulation pump to maximize efficiency in swim spa heating and filtration. The circ pump moves water at 240 litres per minute through the EcoPur® Charge filtration system, filtering the water when the swim spa is not in use. By keeping the water moving at preset intervals, the circulation pump ensures hot tub water remains filtered and heated evenly.
In addition to improving water filtration, maintaining a slightly elevated water temperature allows the swim spa to heat up more quickly, ensuring it’s ready when you are. Without the circulation pump, the water would be still, which results in increased demands for swim spa chemicals and additional time to heat the water to the desired temperature prior to use.
The EcoPur® Charge hot tub water purification and filtration system is Master Spas® newest advancement in clean water technology. This revolutionary hot tub filter is engineered to work in concert with both the Mast3rPur™ and QuietFlo™ systems. The EcoPur® Charge hot tub filter replicates the way nature uses copper and zinc to purify water and remove dirt, bacteria and algae.
The hot tub filter fabric is wound tightly into a nautilus cell and is encased by a spring core that allows for maximum water flow. As the water flows through this master core, it is charged by low levels of copper and zinc oxides; these natural elements are safe for your hot tub and create a more efficient way to maintain clear, clean water. By filtering water the same way Mother Nature does, this technology reduces water-soluble heavy metals and, in the process, decreases the amount of harsh chemicals needed to purify the spa water. EcoPur® Charge also controls scale, bacteria and algae, safeguards the hot tub’s plumbing and helps prevent damage to swimwear.
Our insulation is critical in keeping your swim spa warm and your power bills low – even in an Arctic Winter.
Master Spas’ environmentally friendly full foam insulation provides the most efficient heat retention available in any swim spa on the market. Full foam not only keeps running costs low, but also adds structural support to the spa which lengthens the life of its components. Our full foam insulation ensures that you end up with a better swim spa that is cheaper to use.
Features that make our best stand out from the rest.
Master Spas’ control system, SpaTouch® , takes swim spa control to a whole new level. With this advanced digital system you can set filtration, temperature, lighting, sound system settings and more all at the touch of a button.
Control your spa anytime, anywhere, anyplace! The Balboa Worldwide App (bwa™) module add-on allows you to control the jets, temperature settings and more – all from your smartphone or tablet.
Talk to a sales consultant today about purchasing the bwa™ module upgrade with your Spa Pool and enjoy water that’s ready whenever you want to take a dip!
Features that make your swim spa stand out.
Illuminate your swim spa and create the perfect setting to improve your feeling of well-being. The programmable Orion Light System™ allow you to choose from relaxing, party or entertainment modes to suit your occasion and lend some ambiance. You can change the entire mood with lighting.
Listen to the calming sound of falling water while you sit back and enjoy a soothing massage. Our water features are designed to enhance the power of meditation and relaxation. Water meditation can help cleanse your mind and reduce stress on your body.
A soothing massage – anytime you like.
From deeply relaxing to powerfully invigorating, the Master Blaster® Hydrotherapy Jets offer a full range of massage types. Swirling, pulsing, streaming or penetrating, Master Spa’s jets work effectively for virtually every therapeutic technique.
Experience Master Blaster® Hydrotherapy Jet-driven water today to feel the difference.
Relax into the StressRelief Neck and Shoulder Seat™, available on select models. Specially designed out-of-water jets deliver a tension-relieving massage where it’s needed most, across the neck and shoulders.
The jets of the Xtreme Therapy Cove™ deliver a complete therapeutic massage for your lower back, hips, thighs, and calves. The warm water also improves circulation, delivering nutrients and oxygen to tired muscles.
See a swim spa, select the perfect size.
We can do this with a photo & dimensions or by visiting your backyard
When you’re ready, installation and setup will be a breeze.
Every Master Spa is backed by an impressive warranty to give you peace of mind.
Structural Warranty
Acrylic Shell Warranty
Heater & Jets Warranty
Equipment Warranty
Can we deliver to you? Enquire now for information on delivery depots, manpower, driveway, hiab and rural deliveries.
ALL YOU NEED TO KNOW ABOUT THE CHALLENGER 18D
Yes, we work directly with GEM finance to offer our customers practical finance options.
GEM finance is one of New Zealand’s leading finance providers and works in conjunction with most major retailers around the country.
Visit our finance options page for more information.
Yes, all our spas and swim spas come with fully insulated, lockable covers. Our spa covers are specifically designed to trap the heat, even in the depths of winter!
Your spa must be placed on a sturdy, flat surface that won’t move or waiver under the total weight of your spa once it’s filled. Do not place your spa on grass.
Excellent machine! Much better than expected. The current performs well, the jets are great, just a wonderful piece of equipment. Very happy.
We have had our unit for about two weeks and even in the cold of early winter, we are using it. She loves the exercise opportunities and loves the ability to swim all year.
From purchasing to install and post sales support we have had a great experience with our Challenger swim spa. We absolutely love having it and use our swim spa every day. Being home bound, it has been a great way to get exercise and spend time together!
We stand behind all of our spas.
We have the largest Spa Pool showrooms in New Zealand, so you’re sure to find a model perfect for you!
Feel free to step inside one of our showrooms in Auckland or Christchurch to see the products for yourself. Take a step inside the tubs themselves (no togs required) to take a closer look and test out the seating and layout and feel fully convinced of your choice. We appreciate it can be a big decision and we’re here to help you find the right one!
We understand the importance of speedy after-sales service. We hold a full inventory of spare parts for fast service in the unlikely event of a repair. Our highly skilled technicians can go directly to you, anywhere in New Zealand.
Showroom Opening Hours
Mon – Fri: 9am – 5pm
Sat– Sun: 10am – 5pm
Showroom Opening Hours
Mon – Fri: 9am – 5pm
Sat– Sun: 10am – 5pm
Mon – Fri: 9am – 9pm
Sat – Sun: 10am – 9pm
Mon – Fri: 9am – 9pm
Sat – Sun: 10am – 9pm
