The H2X Challenger 18D Pro by Master Spas is an 18-foot premium swim spa designed for high-level athletic training, featuring an airless "AquaSpeed VSP" jet system that creates a smooth, wide, and powerful current capable of a 1:10 per 100-meter pace. It includes three dedicated pumps, two variable speed motors, and extensive hydrotherapy seating, including an Xtreme Therapy Cove. 
 
Key Features & Performance
Swim Performance: Designed with six strategically placed jets to create a strong, adjustable current with 25 speed settings.
Power and Flow: Offers a top-end speed of 1:10 per 100 meters, which is faster than the standard 18D model (1:20 per 100 meters).
Technology: Features the AquaSpeed VSP touchscreen display for programmable, customizable workouts.
Design & Comfort: 18-foot length with a water depth of 51 inches, offering ample space for swimming and hydrotherapy.
Water Management: Uses the EcoPur Charge Filtration System with natural minerals (copper and zinc) for cleaner water.
Hydrotherapy: Includes specialized seating such as the StressRelief Neck and Shoulder Seat and Xtreme Therapy Cove for muscle recovery.
Installation: Can be installed in most backyards, providing an all-season alternative to a traditional swimming pool. 
 
Capacity: 2080 gallons 
Dimensions: 94" x 215" x 60" 
Water Features: 1
Pumps: 3
Dry Weight: 2840 lbs 
Full Weight: 21115 lbs 
Filtration: EcoPur® Charge
LED Lighting: Waterline