Feature patented react shock absorption system and 7-1/2" step-up height. Cooling fan. The 9-14 and 9-16 have low friction polymer belt needs no waxing or lubrication.

Nautilus 9 Series Treadmill Specifications:

Dimensions: 35-1/2"W x 54"H; 9-12: 83"L; 9-14: 86"L; 9-16: 89"L
Running Surface: 22"W; 9-12: 57"L; 9-14: 60"L; 9-16: 63"L
Electrical: 115 volts, 20 amp-dedicated circuit
Heart Monitoring: Contact and telemetric
Maximum Daily Usage: 9-12: 6 hrs/day; 9-14 and 9-16: full institutional usage
Programs: 9-12: 12 preset, 3 custom, distance based/interval, 3 HR controlled; 9-14: 9 preset, 2 HR; 9-16: 14 programs, 4 HR
Display: ROC remote keypad for speed and elevation; 9-12: LED console; 9-14: hires. LCD with Touchsensor; 9-16: large hi-res. back lit LCD
Weight Capacity: 9-12: 400 lbs.; 9-14 and 9-16: 600 lbs.
Approvals: UL, CSA, CE