Sliding patio door

Thanks for reaching out! The internal mortise lock you have pictured here looks a lot like the 82-238 with the faceplate removed. To determine if this is the right replacement, carefully look over the dimensions and compare them to your existing lock.

Alternate image for 82-238

Alternate view of 82-238

This mortise lock (and your door) should be compatible with the 82-080 Mortise Style Handle Set. To determine if this is the right replacement, take a look over the dimensions. The keyed version of this handle set is the 82-081 Keyed Mortise Style Handle Set.

Dimensions for 82-080