Treadmill Doctor Weslo Cadence sl25 Treadmill Running Belt Model# WLTL48590 Review HelpfulOwl Treadmill Belts June 27, 2018September 2, 2018Exercise & Fitness, Exercise Machine Parts & Accessories, Sports & Fitness, Sports & Outdoors, Treadmill Doctor 0 Comment This is the replacement walking belt for the Weslo Cadence sl25 Model WLTL48590 Walking Belt Size 18×103