We are now stock the Von Duprin 8827-F Top and Bottom Latches 050462 / 050463. These are the fire rated top and bottom latches for the Von Duprin 8827-F. You can tell if you have the fire rated version of the Von Duprin 8827 if you are able to dog the cross bar down with an allen wrench (dog key). If you are able to lock your cross bar down with the dog key, then you do not have the fire rated version. Also, if there is a metal tag riveted to the housing, then you have the fire rated version. The Von Duprin 8827-F Top Latch is Part #050462, and the Von Duprin 8827-F Bottom Latch is Part # 050463. We also have the Von Duprin 8827-F Top Latch Covers part # 050465.