this is a green vacuum cleaner and I need replacement belt to fit I can tell anyone else that sears stores cant find the model # but parts dept can belts are not in stores or are they there are only so many sizes and manufactures so yes you can improvise and use the sears u upright bags and we bought all the sizes of the smooth belts and the one we found that was a close match was UB-1 it is a little small but better then 12.00 a belt on parts line other ones at store are smaller if anyone know of another one that works or has a manual let me no thanks