This is a unique, one of a kind, trolley style roller assembly with two parallel 1-1/4 in. concave steel rollers in a stamped steel housing. Used on Guaranteed Products patio doors, it's unique housing fits into the bottom rail held in place by the two existing screws in the door. Use Prime-Line part D 1547 for the nylon roller version.

Designed for use on Guaranteed Products sliding patio doors

Mounting holes on the back end of unit

1-1/4 in. diameter double concave ball bearing rollers

Stamped steel housing and steel rollers

Rear adjusting screw

For nylon rollers, use Prime-Line part D 1547

A Phillips head screwdriver is required for Installation

For further dimensional information, please see the line drawing