Challenger 21D Swim Spa
Redefine backyard living with the H2X Challenger 21D.
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.
StressRelief Neck & Shoulder Seat
Out-of-the water jets target this high-tension area of the body
VIP Technology
The unique design of the plate helps to control turbulence and the flow of water.
Hydrotherapy
H2X Fitness Swim Spas provide a calming retreat where you can find relief from muscle aches and achieve peace of mind.
EcoPur Filtration
Mineral-based filtration system makes water care easy
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H2X Fitness Swim Spa
Challenger 21D
| Dimensions | 257" x 94" x 60" (653 cm x 239 cm x 153 cm) | |
| Water Capacity | 1,830 (6,928 L) | |
| Weight (Dry/Full) | 3,735 lbs (1,694 kg) / 20,850 lbs (9,457 kg) | |
| Propulsion System | Airless VIP Technology | |
| Power Requirement | 240 V / 100 Amp | 2x 230V / 32 Amp |
| Pumps | 3 | |
| Stainless Steel Jets | 53 (Incl. 6 Airless VIP Jets and 1 Master Blaster®) | |
| Water Features | 8 | |
| Ozone System | Standard | |
| Advanced UV Water Purification System | Standard | |
| Filtration | EcoPur® Charge | |
| LED Lighting | Waterline | |
| Listing Number | 9972 |
VIP Technology
The unique design of the plate helps to control turbulence and the flow of water.
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AquaSpeed VSP™
With 25 speed settings, you can turn up the tempo for an interval workout or dial it in for endurance efforts.
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Hydrotherapy
Contoured therapy seats and adjustable massage jets help you find relief from muscle aches and achieve peace of mind.
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LED Lighting
Waterline LED lighting adds to the ambiance and overall enjoyment of your swim spa.
Xtreme Therapy Cove
The Xtreme Therapy Covers features a unique jet pattern that targets back, hips, thighs, and calves. Use as a recovery tool or enjoy a therapeutic massage.
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EcoPur® Charge
The clean, clear water you want without the harsh chemicals you don't. EcoPur Charge uses minerals like copper and zinc to purify water and remove dirt, bacteria, and algae.
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Master Blaster Foot Therapy
Treat your feet to a rejuvenating foot massage with the Master Blaster Foot Therapy. Each jet cluster features 14 individual nozzles for a soothing foot massage.
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StressRelief Neck & Shoulder Seat
Relieve tension and pain in your neck and shoulders with the StressRelief Neck and Shoulder Seat. The unique out-of-water jets target this high-tension area.
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Bio-Magnetic Therapy System
The Master Force Bio-Magnetic Therapy System features strategically placed magnets to relieve inflammation, improve circulation, and boost nervous system responses.
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Water Features
The waterfalls of your swim spa are soothing to watch and listen to, adding to the overall ambiance of your backyard.
H2Xercise ™ Fitness System
Water exercise is a great way to work toward your fitness goals. Most H2X swim spas come with the H2Xercise Fitness System, which includes rowing bars and resistance tubing.
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Wifi Module
Control your swim spa from the convenience of your phone. Set the water temperature, turn on the light, run the massage pumps, and more.
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Nonslip, Comfort Floor System
The Nonslip, Comfort Floor System offers safety and comfort with the unique combination of traction and cushion. **
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Fusion Air Sound System
Stream your favorite station or playlist via Bluetooth®. The swim spa stereo includes up to four interior, water-resistant speakers, and a subwoofer to maximize sound quality.
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Mast3rPur
The Mast3rPur™ Water Management System reduces the amount of chemicals, like chlorine, that you need to use and keeps your spa water clean naturally.
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Axis Cover System
Whether you're looking for a simple solution for handling your swim spa cover or if you want the best swim spa cover on the market, the Axis Cover System is the best choice.
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Bluetooth Speaker
Whether you are hanging out with loved ones or want to create a moment of calm, the right playlist can help you set the mood. This sound system has 40W power and a bass boost with up to 10 hours of playtime. It's designed to easily rest on the water features of the spa for superior sound quality.
Heat Pump
Keep your H2X Fitness swim spa at your perfect temperature year-round while saving on your monthly energy bill. This technology, which connects to your spa's plumbing, can efficiently heat or cool your water. The heat pump is a dealer-installed premium option.
Quietflo Water Care System
Maximize efficiency, while keeping water filtered and heated evenly. The QuietFlo Water Care System utilizes a circulation pump to move water at preset intervals.
- 10 YEARS - Spa Structure
- 7 YEARS - Shell Surface
- 5 YEARS - Equipment
- 5 YEARS - Plumbing
- 5 YEARS - Jets
- 3 YEARS - Nonslip, Comfort Floor System
- Lifetime - Skirting: Duramaster Polymer™
- 1 YEAR - LED Light System*
- 1 YEAR - Mast3rPur System*
- 1 YEAR - Audio Equipment*
At Master Spas, we make buying a swim spa just as relaxing as owning one.
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