The 9957L is a three-point locking exit device from Von Duprin. It latches at the head, the floor and the door edge, which holds a door shut at three places. It is used on single doors that need an exit bar with a locking latch. Von Duprin is an Allegion brand. Part 9957L-NL-07 4 643E RHR is the 48 Device, 84 Door Height, Night Latch Function, 07 Lever with Escutcheon, Hex Dogging, Field Reversible version in Aged Bronze.

• 48 Device
• 84 Door Height
• Night Latch Function
• 07 Lever with Escutcheon
• Hex Dogging
• Field Reversible
• Finish 643E Aged Bronze
• Grade 1
• Part number 9957L-NL-07 4 643E RHR