Sliding glass door roller

Hello, thank you for posting,

Unfortunately we do not have an exact match for this roller assembly. Start by taking a look at the 81-158 with the cut out at the top of the housing or the 81-157 with the screw hole at the top. Both rollers and housings seem to have the same dimensions as yours. Take a look at both on the web site to see if you could use either of these rollers to fix you patio door. 

Let us know what you think!