Prime-Line 1-1/2 in. D X 0.75 in. L Steel Roller Assembly 1 pk

This is a plain back patio door roller assembly with a 1-1/2 in. concave steel ball bearing roller. It has a plain back housing that is 3/4 in. wide with a 7/8 in. flare, and 1-5/8 in. height. It is rear adjusting with a threaded mounting hole on the back end. Used by a variety of manufacturers of sliding patio doors.