The Von Duprin EL33A/35A/98/99 devices can be converted to the QEL devices by getting correct sized QEL conversion kit and a 900-2Q option board for the PS914 power supply.
3' Conversion Kit #05...
Kits are available per the following criteria. Product Bulletin
Required
Series 94 or 95
Fire or Panic
3FT/4FT or 2 ft 6 in / 2 ft 10 in
Finish
Optional
LX...
The part will be configured as CONVERT.XXXX part numbers. The customer need to specify the following criteria.
Required: Series 94 or 95, Fire or Panic , 3 feet/4feet or 2 feet 6 inches/2 feet...