Horizon Fitness T73 Treadmill Horizon Fitness Updated September 16, 2021 22:07 For the 2007 Horizon Fitness T73 Owner's Guide, please click here. For the French Owner's Manual, please click here. For the 2007 Horizon Fitness T73 Exploded Diagram, please click here. Was this article helpful? Yes No 0 out of 0 found this helpful Have more questions? Submit a request Comments 0 comments Please sign in to leave a comment.