Dor-O-Matic Panic Devices| Monarch Exit Devices

The Monarch / Dor-O-Matic / Falcon 600339 NL Spring Package converts the 179L , 712L, 712K, 912l and 911K to an NL function.   The NL function is  one were the Lever Handle can not be unlocked and left in the unlocked position when the key is removed.   Spring has a 5/8" diameter.  See attached instructions.