Replace interior lock

We appreciate your inquiry. While I understand you only need the interior handle, our patio door handle sets are sold as complete units. That said, I believe the 82-030A Centered Keyed Handle Set would be a good option. You'll need to purchase the mortise lock separately. We recommend the 82-239 (or stainless steel 82-259). 

Take a look over the dimensions below to confirm that these are the replacements needed for your repairs.

Dimensions for 82-030A

Alternate image for 82-239