This the handle with lock for a mid-80s built property that is likely an alenco sliding door.

Thanks for reaching out! Your Alenco sliding door handle set reminds me of the 82-005 Surface Mount Sliding Door Handle Assembly. To confirm that this is the right fit, carefully review and compare the dimension shown below. This handle set does come with a compatible keeper.

It is only available in the black and brown color shown.

Alternate image for 82-005

Profile view of the 82-005 handle set