Need replacement lock for sliding door

Thanks for reaching out! We have a few different options that are compatible with the brand shown on the sticker of your door, Silverline. 

To narrow down the best possible replacement, I'll need to see a photo of the existing handle, if possible. I'll also need to know the distance between the installation screw holes, from center to center. If you do not have the existing hardware, I'll need to see a photo of the space where it would be installed as well as the measurements.

Also, keep in mind, the internal mortise lock is sold separately from a majority of our handles. So, if you are looking to replace that, I'll need to see a photo of that as well.

Thanks for reaching out! Your handle set appears to be the 82-087. This handle set is available in brass. We also have the 82-086 which is available is white, black, beige, and bronze. I am confident this is the replacement handle set you'll need however, look over the dimensions to confirm.

The compatible mortise lock is part 82-218. Again, look over the dimensions and compare the installation hole measurements to those on the door opening. It should be 3-11/16".

Profile view of 82-218

I've linked a few videos with instructions on how to install both the handle set and the mortise lock in the event that you need assistance.