Sliding door latch

Thanks for posting. We don't carry this exact keeper, but I think we still may be able to help. Can you show me the lock that interacts with this keeper? Its style will clue us in as to substitute options that might work for you. Many thanks. 

That's perfect, thanks. You have a mortise lock like our 82-218. This lock can work with keepers like our 89-021 or 89-020; again, these have a different shape then your old keeper, and you'd likely have to drill new mounting holes to install them; but they will certainly work with the 82-218. Let me know if you have further questions.