patio door latch, door lock hooks on to it to lock door

Hello,

Thanks for post! This patio door mortise lock is compatible with either the 89-039 or the 89-047. Since the framing only has four holes, the 89-039 may be the best replacement, but be sure to compare both of their dimensions.

Alternate image for 89-039

Dimensions for 89-047

The item can be ordered ordered on the website, using either the link in my response or the one below this thread. If you need assistance with placing the order, you are welcome to call (888) 991-1929 to speak with a member of our customer service team.