The Falcon 24-C and 25-C devices use a -C designation for a Night Latch function without a pull from us, often referred to as NLOP (Examples 24-C-C..., or F-25-C-C....).
This is the same nomenclature that was used on the Monarch 17-C, 18-C and XX-C devices that preceded the Falcon 24-C and 25-C devices.
The 718C-C trim is required for a cylinder only operation with these concealed vertical rod devices to be able to mount the mortise cylinder to the trim and for the operation of that cylinder to lift the rods inside the door.
There is also a 718NL-C trim that would be supplied with a 24-C-NL device and has a pull handle attached to the escutcheon.
There is also a 718C-R/V for use with the 24-R-C and 24-V-C devices that is not required for NLOP function on the Rim or Surface Vertical Rod devices, but can be used if the escutcheon plate is desired.
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