Prime-Line Bi-Fold Door Top Guide Rollers, Chapparal (2-pack)
$4.93$493
This is a spring-loaded 7/8 inch diameter nylon roller guide in a 3/8 inch plastic base. It mounts on the top edge of a bi-fold door that is 1 inch to 1-3/8 inch thick. Used by Chaparral and a variety of bi-fold door manufacturers.
Nylon and stamped steel construction
3/8 in. diameter spring-loaded bi-fold door pivot
Easy installation with low maintenance with a few simple tools