Mullett Industrial Sales contact info. Auctiva offers Free Image Hosting and Editing. 15A20H56 Gearbox Speed Reducer 201 Ratio Gear Reduction Box" is in sale since Monday, July 23, 2018.This item is in the category "Business & Industrial\Automation, Motors & Drives\Mechanical Power Transmission\Gearboxes & Speed Reducers". The seller is "mullettindustrialsales" and is located in Clare, Michigan. This item can be shipped worldwide.