2579529 Andersen PASSIVE 2-Point Lock Mechanism.
Lock box with LOCKING HOOKS at top and bottom.

Overall Length: 92-1/2 Inches
Faceplate Width: 7/8 Inch
Backset: 2 inches
This lock fits Andersen 8 foot Frenchwood Hinged Patio Doors.
Zinc Dichromate (Gold) protective Finish.

The passive multipoint locks cannot be interchanged.
If you have the older gold colored lock mechanism, it must be replaced with the same type.
Stainless steel must replace stainless steel.

Related Andersen Hardware
2579529 (this one) - 8-0 Passive Old Style
2579779 - 8-0 Passive New Style
2579514 - 8-0 Active Old Style
2579773 - 8-0 Active New Style

Resources:
Article: How to Change Handing of Andersen Multipoint Locks
Manufacturer's Guide: How to Replace an a Multipoint Lock in an Andersen Door

Rehanding an Andersen Multipoint Lock