8875K-F-SPBLK-LHR Von Duprin 8875 Series with 880K-M Knob Fire Rated Mortise Lock Device in Black Finish The Von Duprin 8875K-F-SPBLK-LHR series of exit device for all types of 4' x 8' (1219 mm x 2438 mm) single and 8' x 8' (2438 mm x 2438 mm) double...