Will my new standard roller work in an old track

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The 2030 closer requires a minimum 1-3/8" top rail on the door for the standard track.  For a top rail less than 1-3/8" and as narrow as 1", you could use the l...
The SEH is an "electronic holder" (ONLY) that is used to hold open a Fire Rated opening. It requires a door closer to be mounted on the opposite side. It is normally used on an existing opening wit...
Part numbers listed below: 2030-3071 cylinder assembly includes the closer cylinder and finish plate.  2030-3971 is the cylinder only. 2030-3002 is the finish plate. 2030-3077T is ...
The replacement arms for the older handed 4010SE/4110SE closers would be ordered as: 4040SE-3077T x ST-3035 for a RH arm. 4040SE-3077T x ST-3035-1 for a LH arm. 
The old 33/3547 rods will not work with new 33/3547A exit device.
The older 871-2Q card that was used on PS873 power supply will not work with PS914 power supply. You don't need to use the PS914 power supply with 900-2Q board, you can simply use the PS902 power ...
The battery for the PS873 and PS914 are the same, 7AH sealed Lead Acid  battery.
The new latch, introduced mid-June 2013, will NOT fit into the previous T lock chassis.  Customer are encouraged to order a new Falcon T lock.  If needed, customers can replace the older ...
The old 800 series power supplies and boards and the new 900 series power supplies and boards are not compatible with one another.
The PS900 power supplies will only accept the 900-XX option boards.
Falcon replaced its deadbolt offering in 2008 with the D100 and D200 series.  The D800 Grade 2 deadbolt was replaced by the D200 and the D400 Grade 1 deadbolt was replaced by the D100.   The new bo...
  Part compatibility (Old vs new): With the exception of the cylinder, most of the parts are neither backward nor forward compatible.  This includes the deadbolt. The cylinder mechanism for al...