If youre looking for the same resistance for rigorous workouts that the ATV-14 Sport offers, but want an expanded swim and workout space, the ATV-17 Sport is the vessel for you! It has more versatility for your swim and workout needs with an extra 3 ft. / 91.4 cm of length and 5 in. / 12.7 cm of depth (53 in. / 135 cm total water depth) than the 14 model. The ATV-17 Sport still includes 3 dual-speed pumps (160 GPM / 606 LPM) to create a flow rate of 480 GPM / 1,817 LPM to deliver swim workouts and strength and rehab conditioning exercises with low-impact on your body. Twin-end tether points offer more workout options with and against the flow.