Sportsmith PreLubed Treadmill Belt fits Horizon 3.1T, Serial# TM135

This pre-lubedSportsmith walking belt fits Horizon Fitness 3.1T treadmills, Serial# TM135 . A top feature of Sportsmith belts is the non-directional, finger splice seam. This Sportsmith running belt fitsHorizon Fitness 3.1T ,Serial# TM135.