The Michael Phelps Force D is the smallest of the range ideal for swimming, aquatic fitness, hydrotherapy, and entertaining, this nearly 17ft swim spa features a smooth, wide current thanks to the patented Wave XP Propulsion System. You have total control from level 0-100 allowing you to find your perfect resistance and build up. The jet propulsion can reach speeds equivalent to a sub-75 second pace per 100m
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