If it's minimal maintenance you're after, our quality PVC belts with impregnated lubrication require less attention to make things run smoothly.
This Sportsmith treadmill running belt fits Horizon Fitness T500 treadmills, Serial#s TM307

User facing surface: Black Diamond
User facing material: PVC
Impregnated Lubrication
No need to apply lube during belt replacement

Finger-spliced seam
1 ply
Some machines with the same name can use different parts. This is why you should always match your model# or serial#.