GU Ferco Astragal Mortise Lock Flush Bolt 854-15722

G-U Astragal mortise lock. Zinc. Used on the inactive panel of double doors, french doors and garden doors. Rods sold separately. 
Astragal flush bolt stamped 6-C7250-19-0-0.

Shoot extends to 25mm (adjustable by reducing rod length).
Non-handed mechanism.
20mm faceplate cover with radius ends.
Backset adjustable for astragal thickness 12.7mm to 28mm.
Use with 10mm round rods. (Sold separately)

The inactive door panel on a double door is secured by flipping the lever 180 degrees with your finger which either engages or disengages both the top and bottom shoots.